- fix(monkey): remove executable permissions from source files [`3971`](https://github.com/lvgl/lvgl/pull/3971)
- fix(ci): set Ubuntu version for MicroPython test [`3865`](https://github.com/lvgl/lvgl/pull/3865)
- fix(Kconfig): fix wrong type of LV_FS_STDIO_CACHE_SIZE (v8.3) [`3906`](https://github.com/lvgl/lvgl/pull/3906)
- docs(indev): fix the name of long_press_repeat_time (was long_press_rep_time) [`34c545e`](https://github.com/lvgl/lvgl/commit/34c545ef19dc97c8952a412e533a4cd3924b9fbc)
- fix(roller): consider the recolor setting of the label [`39f4247`](https://github.com/lvgl/lvgl/commit/39f424767fa57376c4cb08cf22951fd56d854fd6)
### Examples
### Docs
- docs(indev): fix the name of long_press_repeat_time (was long_press_rep_time) [`34c545e`](https://github.com/lvgl/lvgl/commit/34c545ef19dc97c8952a412e533a4cd3924b9fbc)
### CI and tests
- ci(esp): fix push to the component registry on tag [`e529230`](https://github.com/lvgl/lvgl/commit/e529230f4bb97b4506c430aac96d5ddaef685dc4)
### Others
- chore(cmsis-pack): update cmsis-pack for v8.3.5 [`3972`](https://github.com/lvgl/lvgl/pull/3972)
- chore: add an option to "LV_TICK_CUSTOM" [`3879`](https://github.com/lvgl/lvgl/pull/3879)
- bump version numbers to v8.3.5-dev [`47c8f8f`](https://github.com/lvgl/lvgl/commit/47c8f8f9822f4c0c0ffbe2f12b380bddefcec475)
## [v8.3.4](https://github.com/lvgl/lvgl/compare/v8.3.4...v8.3.3) 15 December 2022
### New Features
- feat(keyboard): ported arabic keyboard from release 7.10.0 [`3728`](https://github.com/lvgl/lvgl/pull/3728)
- feat(table): scroll to the selected cell with key navigation [`39d03a8`](https://github.com/lvgl/lvgl/commit/39d03a80f45847a1977cfe9cc6a509b1613d0aca)
- fix(draw): SDL2 gradient support #3848 [`3856`](https://github.com/lvgl/lvgl/pull/3856)
- fix(esp.cmake): add demos and examples [`3784`](https://github.com/lvgl/lvgl/pull/3784)
- fix(indev): fix scrolling on transformed obejcts [`84cf05d`](https://github.com/lvgl/lvgl/commit/84cf05d8b23b31e000db757a278545e58fcbcbe8)
- fix(style): add the missing support for pct pivot in tranasform style properties [`c8e584f`](https://github.com/lvgl/lvgl/commit/c8e584f879a1e1427e7a8f5ff496af39f17df41d)
- fix(flex): be sure obj->w_layout and h_layout can't be set at the same time [`c4c4007`](https://github.com/lvgl/lvgl/commit/c4c400716e80a279e7b3d43b8992915fe94441eb)
- fix(chart): fix very dense bar charts [`bb2c2ac`](https://github.com/lvgl/lvgl/commit/bb2c2ac34ac943978513c7ed51885078979b1c10)
- fix(draw): handle LV_COLOR_DEPTH == 1 too in lv_draw_sw_transform [`bd11ad8`](https://github.com/lvgl/lvgl/commit/bd11ad8542eac9ff51420e5afb80f7e6fcf36a5c)
- fix(draw): fix text color with sub pixel rendering and BGR order [`e050f5c`](https://github.com/lvgl/lvgl/commit/e050f5ca156f79d752894f38f0a437c946205cb4)
- fix(meter): fix setting part_draw_dsc.id in needle img drawing [`716e5e2`](https://github.com/lvgl/lvgl/commit/716e5e2c8bd2a22e7d56e8d7ca33054a11a1f4ed)
- fix(gridnav): fix stucking in pressed state with encoder [`ad56dfa`](https://github.com/lvgl/lvgl/commit/ad56dfaf7046a9bb8c05e877a8c8852cd14a59af)
- fix(darw): add back the disappeared antialising=0 support [`2c17b28`](https://github.com/lvgl/lvgl/commit/2c17b28ac476c95a4153ab6cabb77b1c7208bb74)
- fix(msg): fix typos in API by adding wrappers [`41fa416`](https://github.com/lvgl/lvgl/commit/41fa41613455260ccdeb87ecb890ce026ff0a435)
- fix(style): remove the reduntant define of LV_GRADIENT_MAX_STOPS [`903e94b`](https://github.com/lvgl/lvgl/commit/903e94b716ca1b32cdb51de11df679953699e53b)
- demo(benchmark): fix lv_label_set_text_fmt format strings [`ae38258`](https://github.com/lvgl/lvgl/commit/ae3825871e31cd42cad2f310bdfc605150670511)
- fix(canvas): fix clipéping on transformation [`b884aba`](https://github.com/lvgl/lvgl/commit/b884abae26f3824b27783a85d18ed51e550347c1)
- fix(draw): allow drawing outline with LV_DRAW_COMPLEX == 0 too [`ece3495`](https://github.com/lvgl/lvgl/commit/ece34950040e218fc73605a4e88f1060c2a274f8)
- fix(colorwheel): fix updating color when using lv_colorwheel_set_hsv [`d59bba1`](https://github.com/lvgl/lvgl/commit/d59bba12db115afb4b6aa53eed2625221dfff2fd)
- fix(slider): find the nearest value on click instead of floor [`dfd14fa`](https://github.com/lvgl/lvgl/commit/dfd14fa778aef25d0db61748a58aa9989ce5e2c8)
- fix(draw): fix border drawing with thick borders [`d5b2a9b`](https://github.com/lvgl/lvgl/commit/d5b2a9b2562cbfa327bf0ec03c11d28576037a14)
- fix(group): be sure obj is removed from its current group in lv_group_add_obj [`5156ee0`](https://github.com/lvgl/lvgl/commit/5156ee058d5de674a00ffd84d15d460de7f0e53b)
- fix(style): add missing invalidation in lv_obj_remove_local_style_prop [`a0515ba`](https://github.com/lvgl/lvgl/commit/a0515ba30dd74b8b22a6709d334eb03782ee1a4d)
### Docs
- docs(draw) remove reference to old lv_fs_add_drv function [`3564`](https://github.com/lvgl/lvgl/pull/3564)
- docs(disp): LV_COLOR_SCREEN_TRANSP remove dependency on LV_COLOR_DEPTH_32 as transparency is supported across all color depths [`3556`](https://github.com/lvgl/lvgl/pull/3556)
### CI and tests
- ci: protect test.c with #if LV_BUILD_TEST [`be485d7`](https://github.com/lvgl/lvgl/commit/be485d7605136d2a5d6a633c7cb5b7c525cae7ee)
### Others
- chore(rt-thread) backport fixes from v9 [`3604`](https://github.com/lvgl/lvgl/pull/3604)
- fix(arc): fix arc knob invalidation in SYMMETRICAL mode [`a283273`](https://github.com/lvgl/lvgl/commit/a283273bd27599dae6b044a941b6591ad45e059b)
### Examples
- example(freetype): Update the Micropython example to use the Lato font [`71913d3`](https://github.com/lvgl/lvgl/commit/71913d300dde25d1b87d1b44fa1fa47854defd59)
- example(freetype): replace the arial font with lato to avoid licensing issues [`8544cc3`](https://github.com/lvgl/lvgl/commit/8544cc38062d9c817013bbe6aedbb47112e580ad)
### Docs
- docs(readme): fix LVGL version typo (8.3.0) [`3462`](https://github.com/lvgl/lvgl/pull/3462)
- docs(tasmota): support LVGL 8.3.0 (#3511) [`62662f6`](https://github.com/lvgl/lvgl/commit/62662f68e9cf90adcb96d42030eca5fa135b96a5)
- **Layers** Support transforming (zoom and rotate) any widgets and their children drawn by LVGL. To do this LVGL renders the transformed widgets into a layer and draws that layer as an image applying all the transformations. Layers are also used when `opa` (not `bg_opa`, `border_opa`, etc) and `blend_mode` are set. This way nested objects are blended as one layer to avoid color bleeding. See more [here](https://docs.lvgl.io/master/overview/style.html#opacity-blend-modes-and-transformations).
- **inherit and initial style properties** Besides setting "normal values" for style properties now you can set them to `inherit` (inherit the parent's value) and `initial` (set the system default). See more [here](https://docs.lvgl.io/master/overview/style.html#forced-value-inheritance-default-value)
- **NXP-PXP and VGLITE GPU support** The support for NXP GPUs are added again
- **Color font support** You can use emojis and images in texts with this great new features. See more [here](https://docs.lvgl.io/master/others/imgfont.html).
- **ARM2D GPU support** Get support for Arm's Microcontroller 2D Graphics Acceleration, e.g. Helium based acceleration, DMA-350 based acceleration etc.
- **PubSub messaging** A publisher-subscriber based messaging system is added to make communication between components easier. See more [here](https://docs.lvgl.io/master/others/msg.html).
- **Pinyin IME** Add support for Pinyin IME Chinese input. See more [here](https://docs.lvgl.io/master/others/ime_pinyin.html).
- **render_start_cb** A new callback is added to `lv_disp_drv_t` to indicate when the rendering starts. It's useful to make synchronization, e.g. wait for a TE signal.
### New Features
- feat(ime_pinyin): add API to support 9-key input mode [`3447`](https://github.com/lvgl/lvgl/pull/3447)
- feat(font): add font placeholder drawing configuration [`3446`](https://github.com/lvgl/lvgl/pull/3446)
- feat(dma2d): add lv_draw_stm32_dma2d_buffer_copy function [`3147`](https://github.com/lvgl/lvgl/pull/3147)
- feat(disp): add screen out animations [`3081`](https://github.com/lvgl/lvgl/pull/3081)
- feat(menu): make menu widget more compatible with encoder [`3061`](https://github.com/lvgl/lvgl/pull/3061)
- feat(label): added animation style property to apply it to circular scrolling animation of label widget [`3128`](https://github.com/lvgl/lvgl/pull/3128)
- feat(script): add pre-commit configuration for code formatting [`3092`](https://github.com/lvgl/lvgl/pull/3092)
- feat(refr): prevents dirty areas from being modified during rendering [`3107`](https://github.com/lvgl/lvgl/pull/3107)
- feat(log): improve lv_log and add log the result from lv_demo_benchmark [`3084`](https://github.com/lvgl/lvgl/pull/3084)
- feat(fragment): add fragment manager (a UI Controller concept) [`2940`](https://github.com/lvgl/lvgl/pull/2940)
- feat(porting): add a macro lv_run_timer_handler_in_period to simplify porting [`3063`](https://github.com/lvgl/lvgl/pull/3063)
- feat(draw): support transforming widgets and improfe sw transform [`318146a`](https://github.com/lvgl/lvgl/commit/318146a2c25362eabf258470be263a4cfeaefe87)
- feat(tabview) add API to rename tab. [`2c9695a`](https://github.com/lvgl/lvgl/commit/2c9695afb4ed6597ae54806c5eb2a287925343f8)
- feat(indev): send LV_EVENT_PRESS_LOST on release with wait_until_release [`cc18518`](https://github.com/lvgl/lvgl/commit/cc18518e96df63c2a02ee9d423cb7bc23382e5a7)
- feat(style) add 'inherit' and 'initial' CSS properties (#3390) [`9a48de0`](https://github.com/lvgl/lvgl/commit/9a48de0f8b19ec02a44aaf6b330066eed7d0a105)
- feat(draw): improve acceleration for LV_IMG_CF_ALPHA_8BIT (#3337) [`8d3c41d`](https://github.com/lvgl/lvgl/commit/8d3c41d5170dad0455fea3d95b2765db70d3c7c2)
- feat(label): added animation style property to apply it to circular scrolling animation of label widget (#3128) [`340d45c`](https://github.com/lvgl/lvgl/commit/340d45cfa91b7108d43af906fc51b1c431877827)
- fix(misc): Remove duplicate declaration of _lv_log_add. [`3103`](https://github.com/lvgl/lvgl/pull/3103)
- fix(gridnav): get key code from the actual event [`3101`](https://github.com/lvgl/lvgl/pull/3101)
- fix(draw_rect): delete __STDC_VERSION__ to ensure C++ compatibility [`3099`](https://github.com/lvgl/lvgl/pull/3099)
- fix(font):draw placeholder if get_glyph_dsc() returns false [`3000`](https://github.com/lvgl/lvgl/pull/3000)
- fix(conf): work around GCC bug [`3082`](https://github.com/lvgl/lvgl/pull/3082)
- fix(fsdrv): replacing sprintf with lv_snprintf for safety [`3079`](https://github.com/lvgl/lvgl/pull/3079)
- fix(cmsis-pack): add PIDX for cmsis-pack [`3064`](https://github.com/lvgl/lvgl/pull/3064)
- feat(gpu): add SWM341 gpu support (synwit) [`07b7eea`](https://github.com/lvgl/lvgl/commit/07b7eea56c048a0654c254cadebee8caf5f7933b)
- fix(fs): fix cached read and add unit test for lv_fs [`98660a8`](https://github.com/lvgl/lvgl/commit/98660a861d874d29e8356452baff21788b6a9ef1)
- fix(table): invalidate only the changed cell [`306fa19`](https://github.com/lvgl/lvgl/commit/306fa1968238fe33dd95e2865e147bceb4706ad5)
- fix(draw): handle non BLEND_MODE_NORMAL for ARGB drawing [`9ac8ce6`](https://github.com/lvgl/lvgl/commit/9ac8ce69f67234563d4254e29e1903a638bb8f4e)
- fix(draw): revert handling of style_opa on not MAIN parts [`51a7a61`](https://github.com/lvgl/lvgl/commit/51a7a61df365685a7cd04b0512ba3844dcfa7209)
- fix(draw): clip the bg img to the rectangle's area in lv_draw_sw_rect [`77d726e`](https://github.com/lvgl/lvgl/commit/77d726efb2467ff86691dee487f97aac79ea45c2)
- fix(scroll): do not fire scroll begin/end event on every scroll step [`25ce6e3`](https://github.com/lvgl/lvgl/commit/25ce6e3ae9e144e2df5dad34475dda3542015f6a)
- fix(indev): do not send keys to objects in disabled state [`b0a46c4`](https://github.com/lvgl/lvgl/commit/b0a46c4837c922cb1303ef768da3209e7efa45ae)
- fix(disp): make lv_scr_load work better with lv_scr_load_anim and auto_del = true [`52287fd`](https://github.com/lvgl/lvgl/commit/52287fd64ad59c35794d1f4486b777f4eb686abc)
- fix(draw): create intermediate layer for blend modes too [`8b15007`](https://github.com/lvgl/lvgl/commit/8b150075681455c6424ddd536e991307ac828eb4)
- fix(group): in lv_group_remove() fix if the object to focus is deleted [`72cb683`](https://github.com/lvgl/lvgl/commit/72cb683c799f65cd4fbae22dafc3a35c123bb66b)
- fix(draw): be sure angle values are in the correct range [`e624b90`](https://github.com/lvgl/lvgl/commit/e624b90db3515816eee8f6ce72677350487f3a02)
- fix(scroll): send LV_EVENT_SCROLL_BEGIN/END with no animation too [`777fe1e`](https://github.com/lvgl/lvgl/commit/777fe1ea706f38b82ab8ee180548ecb85334a469)
- fix(keyboard): don't show popovers on map change [`ac202e7`](https://github.com/lvgl/lvgl/commit/ac202e7b96510b9b12beb8a1eee3dfd65bc56a3d)
- fix(refr): consider masks with LV_OBJ_FLAG_OVERFLOW_VISIBLE [`a7f9dfa`](https://github.com/lvgl/lvgl/commit/a7f9dfa8c3e4fd56cc2db5c3f3926b9391d3661f)
- fix(draw): fix the calculation of the transformed coordinates [`76de7c6`](https://github.com/lvgl/lvgl/commit/76de7c6b7bce6da62f5e961ee477bfa324675683)
- fix(style): fix heap use after free with transition styles [`d9ae58b`](https://github.com/lvgl/lvgl/commit/d9ae58b6977ccfda90e02fa6f5b852d398f8600a)
- fix(textarea): fix max length handling [`127d8e8`](https://github.com/lvgl/lvgl/commit/127d8e82e344cd8762672e787b1ee06390050b65)
- fix(btnmatrix): fix extra draw size calculation to not clip shadow [`7ada130`](https://github.com/lvgl/lvgl/commit/7ada1301c2ee113a5184618538b979f6d9912239)
- fix(indev): scroll_ throw_vect cannot converge to 0 when vect is negative [`e5c11f1`](https://github.com/lvgl/lvgl/commit/e5c11f1f68275d294d5b8892366aa424a5a14bca)
- fix(theme): make the basic theme even more simpler [`62d6f3c`](https://github.com/lvgl/lvgl/commit/62d6f3c533ca6d13fce3056074c1e44ffea355b1)
- fix(color): color mix rounding error [`523062b`](https://github.com/lvgl/lvgl/commit/523062b9ee8a106ad4b3b7bd0ee7baca743f2e5f)
- fix(style): _lv_style_prop_lookup_flags tell all flags for LV_STYLE_PROP_ANY [`e53f602`](https://github.com/lvgl/lvgl/commit/e53f60259c01ab1243b0cf56eb228b7f5eedc203)
- fix(list): use for icon [`b171f7d`](https://github.com/lvgl/lvgl/commit/b171f7dde2a895142385ea1275f3f51255cb2811)
- fix(layout): fix the handling of FLOATING children [`48728a7`](https://github.com/lvgl/lvgl/commit/48728a7839d6859d7d6fc4f86f5fbcbcd9939348)
- fix(style): make color filter inherited [`5546b9d`](https://github.com/lvgl/lvgl/commit/5546b9d740de8d774071328251413ec29c12d288)
- fix(spinbox): set its default width in its class [`3d92972`](https://github.com/lvgl/lvgl/commit/3d9297269598ca40e2f8dd2d8f31150d41e94cb8)
- fix(style): fix using width for both width and height in radius transition [`6acbdaa`](https://github.com/lvgl/lvgl/commit/6acbdaa53d941b891db377e65111bd999f04631d)
- fix(dropdown): fix scrolling when options are CENTER aligned [`e651383`](https://github.com/lvgl/lvgl/commit/e651383688dd29ab2e990cd997118435832d959c)
- fix(grid): fix dead branch [`46bf27d`](https://github.com/lvgl/lvgl/commit/46bf27d50bb668bdd1f84489cb70986ee0ef9fab)
- fix(hal): disable driver->screen_transp by default regardless to LV_COLOR_SCREEN_TRANSP [`ff7204e`](https://github.com/lvgl/lvgl/commit/ff7204ecadd10132b436b11c8948b9a882b58798)
- fix(bmp) fix typo in BPP condition [`cbc38af`](https://github.com/lvgl/lvgl/commit/cbc38afb3a0d3ca02159ab89242749809e64df0c)
- fix(theme): in the basic theme show the textarea cursor only in focuses state [`bb03fb1`](https://github.com/lvgl/lvgl/commit/bb03fb197c7083680fd7dc730794a52561cabfd4)
- fix(theme) add disabled style to textarea in the default theme [`00f6759`](https://github.com/lvgl/lvgl/commit/00f67597d3c87ff811e5e682c10ef20227218651)
- fix(meter): improve the precision of tick line drawing [`0255c6d`](https://github.com/lvgl/lvgl/commit/0255c6dd39640d7ec639cbd339a0fbdcdfb2bb82)
- fix(gpu): fix warning with NXP GPU [`6be43b8`](https://github.com/lvgl/lvgl/commit/6be43b83b3dc9340263552167dbbb07c1069bdb0)
- fix(color): compensate rounding error during blending [`42d9c07`](https://github.com/lvgl/lvgl/commit/42d9c07eeb0abfdbf8746da3569a5f8bc156ae71)
- fix(examples) use type-safe function for retrieving event param [`71d535d`](https://github.com/lvgl/lvgl/commit/71d535defd730fc20ed8d57faa2550781be4f3d7)
- fix(draw) ensure variable is initialized to avoid warning [`276f28a`](https://github.com/lvgl/lvgl/commit/276f28a8a2f4ac2f6268a4363879faa6296e14ad)
- feat(draw): improve acceleration for LV_IMG_CF_ALPHA_8BIT (#3337) [`8d3c41d`](https://github.com/lvgl/lvgl/commit/8d3c41d5170dad0455fea3d95b2765db70d3c7c2)
- fix(spinbox): rename lv_spinbox_set_pos to lv_spinbox_set_cursor_pos [`a99eb6b`](https://github.com/lvgl/lvgl/commit/a99eb6bb6ae12f3fcb86f5268a0c000fb165e159)
- fix(layout): use uint16_t LV_LAYOUT_FLEX/GRID [`c596a36`](https://github.com/lvgl/lvgl/commit/c596a36d9ecf92ae5ce1ecc812210bf3a7df4999)
- fix(event) avoid using a boolean as a pointer [`06fff4b`](https://github.com/lvgl/lvgl/commit/06fff4b9bac35d63564de87fa63f7bedd8a0f9f2)
- fix(theme): properly disable transitions if LV_THEME_DEFAULT_TRANSITION_TIME==0 [`242112b`](https://github.com/lvgl/lvgl/commit/242112b2df8b6cc12aa9920cc3b2fdc9a11d807f)
- fix(scroll): fix scroll to view to the left [`7c74f65`](https://github.com/lvgl/lvgl/commit/7c74f6556abbc299a79b1490c06151a43c902f61)
- fix(fs): mark the read cache as invalid by default [`54f9987`](https://github.com/lvgl/lvgl/commit/54f99870b3cac619fb7057618637d7ee19d58bb3)
- fix(menu): fix crash on delete (#3154) [`a6c4c13`](https://github.com/lvgl/lvgl/commit/a6c4c134902f9a4c156672a70108e809b58fa18c)
- fix(roller): fix unexpected jump in infinite mode [`18f2d78`](https://github.com/lvgl/lvgl/commit/18f2d78728c758179e4ef01ebc632da4e1263be7)
- fix(conf): work around GCC bug (#3082) [`c6b34bc`](https://github.com/lvgl/lvgl/commit/c6b34bc85bb6f5e57e1c87857e03d1a0bd225e4c)
- example(imgfont): fix lvgl.h include path [`3405`](https://github.com/lvgl/lvgl/pull/3405)
- example(btnmatrix): update lv_example_btnmatrix_2 to expicitly check which part is drawn [`6b2eac1`](https://github.com/lvgl/lvgl/commit/6b2eac1dd70df62916b46cee8d4b981ff088b1a7)
- example(slider): make lv_example_slider_3 work with dark theme too [`4a766c5`](https://github.com/lvgl/lvgl/commit/4a766c516db7c2572a075ec5ffe748d30af8c7b9)
- docs(scroll): use LV_DIR_VER instead of LV_DIR_TOP [`3066`](https://github.com/lvgl/lvgl/pull/3066)
- docs: rearrange the get-started section [`8a81532`](https://github.com/lvgl/lvgl/commit/8a8153219163b689e8f96d6a97c1f128eefd7ce2)
- docs: add section for renderers and gpus [`378aaa6`](https://github.com/lvgl/lvgl/commit/378aaa637bdcaef8f06667ab9d56c914e0a61beb)
- docs collapse APIs by default [`ebd20af`](https://github.com/lvgl/lvgl/commit/ebd20af6e9cbd68230f49b6c85d940569a7db81c)
- docs(images): fix notes about breaking change inf v8.2 [`9a1e385`](https://github.com/lvgl/lvgl/commit/9a1e385b2b3498ed70704bf0ed33e4bd263747d8)
- docs(sim): add link to qt-creator [`88bbef1`](https://github.com/lvgl/lvgl/commit/88bbef14bf69725a1ab62bffa6ab79355ea31c2d)
- docs(chart): describe how to set the space between columns [`746917d`](https://github.com/lvgl/lvgl/commit/746917dcca74c53f6b2dc3849c9d588a0bf91b60)
- docs(README): fix broken link [`c2c44c6`](https://github.com/lvgl/lvgl/commit/c2c44c68ee69cdee16fce7833cbf6d6dc0d551ab)
- docs(examples) avoid redirects when loading examples [`d367bb7`](https://github.com/lvgl/lvgl/commit/d367bb7cf17dc34863f4439bba9b66a820088951)
- docs(gesture): describe how prevent sending events after a gesture [`65db5c9`](https://github.com/lvgl/lvgl/commit/65db5c99e05f86d2ec69ebae9f1fc50fe30a3145)
- docs(get-started): add quick-overview to the index [`91ebf81`](https://github.com/lvgl/lvgl/commit/91ebf810aacfe972f0ae140a1a61031eea9cda0c)
- docs(others): add imgfont to the index [`656a0e5`](https://github.com/lvgl/lvgl/commit/656a0e5167dca8c6c29497130e374080397fa45f)
### CI and tests
- ci(slider): add unit test [`3198`](https://github.com/lvgl/lvgl/pull/3198)
- test(line): add unit tests for line widget [`3104`](https://github.com/lvgl/lvgl/pull/3104)
- test(table): replicate issue when reducing table cells [`3121`](https://github.com/lvgl/lvgl/pull/3121)
- test(textarea): add unit test [`3074`](https://github.com/lvgl/lvgl/pull/3074)
- test(table): add unit tests [`3040`](https://github.com/lvgl/lvgl/pull/3040)
- ci(docs) replace use of sed with proper configuration variables [`1816fa5`](https://github.com/lvgl/lvgl/commit/1816fa576cc40ef1795e95ed127d93df5390b0cf)
- ci add Makefile test [`ea79cee`](https://github.com/lvgl/lvgl/commit/ea79cee01a6bec9b3ce5b6c232dd7ca0d020d5c9)
- test(mem) add test for #3324 [`9700664`](https://github.com/lvgl/lvgl/commit/97006647d8ed3af65fd2113ddf01c7882a4dba19)
- arch(sdl): migrated to use new backend architecture [`2840`](https://github.com/littlevgl/lvgl/pull/2840)
- arch(env): move rt-thread into env_support folder [`3025`](https://github.com/littlevgl/lvgl/pull/3025)
- arch(env): arch(env): move the cmake folder into the env_support folder [`773d50f`](https://github.com/littlevgl/lvgl/commit/773d50f0acafa279fa7440ddcf15e80cf07eda54)
- arch(env): move the zephyr folder into the env_support folder [`4bd1e7e`](https://github.com/littlevgl/lvgl/commit/4bd1e7e9f7acc5295b65440477e76a048094afbf)
### New Features
- feat(cmsis-pack): prepare for lvgl v8.2.0 release [`3062`](https://github.com/littlevgl/lvgl/pull/3062)
- feat(scrollbar): add more control over scrollbar paddings [`4197b2f`](https://github.com/littlevgl/lvgl/commit/4197b2fd6ebec4b4dcfeeb2c41b724e09b77d1d0)
- feat(dropdown): keep the list on open/close for simpler styling [`9d3134b`](https://github.com/littlevgl/lvgl/commit/9d3134b66e40882c232afa79498c41294603f437)
- feat(qrcode) use destructor instead of lv_qrcode_delete() [`318edd8`](https://github.com/littlevgl/lvgl/commit/318edd8a3f61a65be3ed15a97c0870de0ad4125a)
- feat(slider): consider ext_click_area on the knob with LV_OBJ_FLAG_ADV_HITTEST [`9d3fb41`](https://github.com/littlevgl/lvgl/commit/9d3fb418969c13b93f01a6b0342a1cd8d02e9b6c)
### Performance
- perf(sdl): optimize the use of SDL_RenderSetClipRect [`2941`](https://github.com/littlevgl/lvgl/pull/2941)
- perf(color): add faster lv_color_hex function [`2864`](https://github.com/littlevgl/lvgl/pull/2864)
### Fixes
- fix(micropython) update examples for new API [`3059`](https://github.com/littlevgl/lvgl/pull/3059)
- fix: increase default value of LV_MEM_SIZE for lv_demo_widgets #3057 [`3058`](https://github.com/littlevgl/lvgl/pull/3058)
- fix(theme): add arc, spinner and colorwheel to basic theme [`adc218a`](https://github.com/littlevgl/lvgl/commit/adc218a7b303c564da021714e5a109a5d003fc30)
- fix(conf) define LV_LOG_TRACE_... to 0 in lv_conf_internal.h to avoid warnings [`305284c`](https://github.com/littlevgl/lvgl/commit/305284c2b5aadec7bcfa68c6517c98d44be7c8a9)
- fix(draw): consider opa and clip corner on bg_img [`d51aea4`](https://github.com/littlevgl/lvgl/commit/d51aea4dffc706876ac729373c33a74743bc05e9)
- fix(draw): add grad_cache_mem to GC_ROOTs [`138db9c`](https://github.com/littlevgl/lvgl/commit/138db9c5d6b1f1d42c48d1307f5f508149ab0fda)
- fix(bar, slider): fix shadow drawing on short indicators [`364ca3c`](https://github.com/littlevgl/lvgl/commit/364ca3ca1763fb732a049bfce689e2f588593cd4)
- fix(theme): fix theme initialization issue introduced in 6e0072479 [`d231644`](https://github.com/littlevgl/lvgl/commit/d2316447c5c240960236d41814ef20e63cd56f00)
- fix(roller): clip overflowing text [`5709528`](https://github.com/littlevgl/lvgl/commit/5709528550f7bdb0a16da1c05ea8094fc085db08)
- fix(align) fix LV_SIZE_CONTENT size calculation with not LEFT or TOP alignment [`9c67642`](https://github.com/littlevgl/lvgl/commit/9c676421ff159de1a96409f5557d36090c1728f9)
- fix(btnmatrix): keep the selected button even on release [`d47cd1d`](https://github.com/littlevgl/lvgl/commit/d47cd1d7fe910efc189e2f43f046a09184cfff13)
- fix(sw): make knob size calculation more intuitive [`5ec532d`](https://github.com/littlevgl/lvgl/commit/5ec532dfd5ffa0d47a1ac80c9a468d6362f3d933)
- fix(switch): make knob height calculation similar to slider [`0921dfc`](https://github.com/littlevgl/lvgl/commit/0921dfc8cd9d00e70ead8cbef8a898711af8f43e)
- fix(span): explicitly set span->txt to the return value of lv_mem_realloc(#3005) [`a9a6cb8`](https://github.com/littlevgl/lvgl/commit/a9a6cb8efd16c55a175791a43a3f4043a3a5e01f)
- fix(draw) simplify how outline_pad is compnesated [`81d8be1`](https://github.com/littlevgl/lvgl/commit/81d8be13d67d6b17b663bc703c1e0e18a18890a7)
- fix(obj) make LV_OBJ_FLAG_SCROLL_CHAIN part of the enum instead of define [`f8d8856`](https://github.com/littlevgl/lvgl/commit/f8d88567f635f325d6738ce2343f3b3c29f1e40a)
- fix(label): dot not add dots if the label height > 1 font line height [`4d61f38`](https://github.com/littlevgl/lvgl/commit/4d61f3802013b31b0af5f08f66bb86f5179db141)
- fix(event): crash if an object was deleted in an event [`9810920`](https://github.com/littlevgl/lvgl/commit/9810920fc5d34a984bddf6e41156e87e509cfd27)
- fix(build) fix sdl build with make [`43729d1`](https://github.com/littlevgl/lvgl/commit/43729d1502dad0ca797b4b6fb8c69a48c81a2af7)
- fix(png) check png magic number to be sure it's a png image [`1092550`](https://github.com/littlevgl/lvgl/commit/1092550775c464f9ae8c406786fe02115776d5c6)
- fix(btnmatrix): fix crash if an empty btnmatrix is pressed [`2392f58`](https://github.com/littlevgl/lvgl/commit/2392f585bb9317153f6fb648d2a660cbdc3e276f)
- fix(mem/perf monitor): fix issue introduced in #2910 [`0788d91`](https://github.com/littlevgl/lvgl/commit/0788d918990fd1c03bd7a04941cfbbdf6d21987c)
- fix(layout) fix layout recalculation trigger in lv_obj_add/clear_fleg [`ee65410`](https://github.com/littlevgl/lvgl/commit/ee65410c3725070ed1779c95fb8742107cdd9267)
- fix(draw): fix clipping children to parent [`5c98ac8`](https://github.com/littlevgl/lvgl/commit/5c98ac85117c24f4da61803f0dc5a9bb6cfd1fdc)
- fix: remove symlinks to be accepted as an Ardunio library [`6701d36`](https://github.com/littlevgl/lvgl/commit/6701d36afe40130479dc83efc05d4860f3f29636)
- chore: fix typos in FATFS config [`74091c4`](https://github.com/littlevgl/lvgl/commit/74091c42f7cf4e85e46e706692accb65879741e2)
- docs(event): tell to not adjust widgets in draw events [`933d67f`](https://github.com/littlevgl/lvgl/commit/933d67fe5b8596da203c318aa9551aad1c2887e6)
- fix(event): handle object deletion in indev->fedback_cb [`bfc8edf`](https://github.com/littlevgl/lvgl/commit/bfc8edf802382f78e96125c886427c99c7f9a600)
- fix(roller): snap on press lost [`fa9340c`](https://github.com/littlevgl/lvgl/commit/fa9340c45fd4a86b4a44878286850f3f67133bf4)
- fix(dropdown) be sure the list is the top object on the screen [`cb7fc2b`](https://github.com/littlevgl/lvgl/commit/cb7fc2bb59f788ce8024d62a5b1e821575a9cb74)
- fix(img) fix invalidation issue on transformations [`d5ede0e`](https://github.com/littlevgl/lvgl/commit/d5ede0ebc6685d4857b5ac554d53c0a7373d7532)
- fix(obj) fix comments of lv_obj_set_pos/x/y [`b9a5078`](https://github.com/littlevgl/lvgl/commit/b9a5078cd9d57662fc6e684d57a0ee4e70ca49c0)
### Examples
- example: add non-null judgment to lv_example_obj_2 [`2799`](https://github.com/littlevgl/lvgl/pull/2799)
- example(table): fix text alignment [`b03dc9c`](https://github.com/littlevgl/lvgl/commit/b03dc9cf862584c2e2be2c900fa4ff6e67b336f8)
### Docs
- docs(demos) update information to reflect new layout [`3029`](https://github.com/littlevgl/lvgl/pull/3029)
- docs(contributing) update commit message format [`1cd851f`](https://github.com/littlevgl/lvgl/commit/1cd851f8c09e813d75feaf9bf312f887f5ba76f0)
- docs(porting): add more details about adding lvgl to your project [`6ce7348`](https://github.com/littlevgl/lvgl/commit/6ce73486d319bfdb1c379d090036a7eeaabf5b43)
- docs(indev): add description about gestures [`2719862`](https://github.com/littlevgl/lvgl/commit/2719862fc3065b5d72c74c3f5f0923c3f6cc82c6)
- docs(faq): add "LVGL doesn't start, nothing is drawn on the display" section [`0388d92`](https://github.com/littlevgl/lvgl/commit/0388d9218a36debf6c989eb999ae68478d8f6b02)
- docs(fs): update fs interface description to the latest API [`285e6b3`](https://github.com/littlevgl/lvgl/commit/285e6b39f99c078e57a611cf84cbfc3b546e112e)
- docs(format) let wrap [`4bf49a8`](https://github.com/littlevgl/lvgl/commit/4bf49a82a3df422ebbfc4e47d4a93c945afdf0fa)
- docs(porting) clarify that displays must be registered before input devices [`1c64b78`](https://github.com/littlevgl/lvgl/commit/1c64b78866b4bb920db75a4b19f8ff1eb7f68a76)
- docs(event) fix lv_event_get_original_target vs lv_event_get_current_target [`cdd5128`](https://github.com/littlevgl/lvgl/commit/cdd5128bc0e17b2ffa3f9fc8f5f133d35fca4e35)
- docs(events) rename LV_EVENT_APPLY to LV_EVENT_READY (#2791) [`bf6837f`](https://github.com/littlevgl/lvgl/commit/bf6837f4c045b01144842ae63c4052e4cac7dafb)
- docs(gpu): link style properties and boxing model [`6266851`](https://github.com/littlevgl/lvgl/commit/6266851381d3b1f1e350dc4689e6bc71ece2f5c1)
- docs(gesture): clarify gesture triggering with scrolling [`e3b43ee`](https://github.com/littlevgl/lvgl/commit/e3b43eec943db48f7cbee83e07e531d41bc61ac0)
- docs(contributing): remove the mentioning of the dev branch [`00d4ef3`](https://github.com/littlevgl/lvgl/commit/00d4ef3c53d9b53e993c76d1eb0bafa7b1c9b721)
- docs(bar) fix default range [`eeee48b`](https://github.com/littlevgl/lvgl/commit/eeee48b1c943fc288521e4479d874348f4690842)
- docs(event): tell to not adjust widgets in draw events [`933d67f`](https://github.com/littlevgl/lvgl/commit/933d67fe5b8596da203c318aa9551aad1c2887e6)
- ci force ccache to be saved every time [`a7c590f`](https://github.com/littlevgl/lvgl/commit/a7c590f10d4c39ae33d89ad86ef608092030654b)
- ci switch to codecov v2 [`6b84155`](https://github.com/littlevgl/lvgl/commit/6b841555cd847d07375b92b54a814c41ccb522de)
- ci more debugging for formatting action [`2f8e4bc`](https://github.com/littlevgl/lvgl/commit/2f8e4bc4c43fa395676e2be5d3d55999206190b4)
- ci inline apt-get commands [`90e2b9f`](https://github.com/littlevgl/lvgl/commit/90e2b9f05e73527dfa2b2df0b1da30512827b8a8)
- ci(micropython) use ESP-IDF 4.4 [`b34fe9e`](https://github.com/littlevgl/lvgl/commit/b34fe9ed8b945fd83a1956cf4ddf2d40485a62ca)
- ci add 5k stack limit [`4122dda`](https://github.com/littlevgl/lvgl/commit/4122dda399679baa3b8bbd2e7055412b132227ab)
- ci force use of ccache in PATH [`6de3fa8`](https://github.com/littlevgl/lvgl/commit/6de3fa8004639ea02d45c1be2985290e65a3d6c0)
- ci add back stack usage check at 4 kilobytes [`89135d6`](https://github.com/littlevgl/lvgl/commit/89135d663daca34c9d9695a4c12b4208ef4ba217)
- ci temporarily disable stack usage check [`1900c21`](https://github.com/littlevgl/lvgl/commit/1900c215482b9b1b5af1dd7c5cb8a95e89906b77)
- ci(cross) use python3 instead of python [`df7eaa0`](https://github.com/littlevgl/lvgl/commit/df7eaa020d656c519b5197cd3d19c587cb1dd234)
- ci use specific version tag [`59b4769`](https://github.com/littlevgl/lvgl/commit/59b476934452d5821424c70954aa32be6f476608)
- ci fix check style action [`5bb3686`](https://github.com/littlevgl/lvgl/commit/5bb3686ea8b6feb55d6bb2b345f5c6cee52d514a)
- ci fix typo in formatting action [`d1ccbf6`](https://github.com/littlevgl/lvgl/commit/d1ccbf607fd3aec61c4606a8f2c268225654b792)
- ci test formatting action [`065d821`](https://github.com/littlevgl/lvgl/commit/065d821c7050af6ad94c7d6dc2d4976a817e54a0)
- ci(micropython) switch to newer GCC action [`1fa7257`](https://github.com/littlevgl/lvgl/commit/1fa7257801f4e0d3c184be438fd7ecb067818c48)
- ci(style) force color on diff to help highlight whitespace changes [`04f47ea`](https://github.com/littlevgl/lvgl/commit/04f47eae0d40c8385535428566d1851ff8ea20eb)
- Add LVGL as an [RT-Thread](https://packages.rt-thread.org/en/detail.html?package=LVGL) and [ESP32](https://components.espressif.com/component/lvgl/lvgl) component
### Breaking Changes
- :warning: feat(calendar): add the header directly into the calendar widget [`2e08f80`](https://github.com/lvgl/lvgl/commit/2e08f80361a9d7e5b97f49af6afc3549ffbf2758)
### Architectural
- arch add small 3rd party libs to lvgl [`2569`](https://github.com/lvgl/lvgl/pull/2569)
- feat(lv_spinbox) support both right-to-left and left-to-right digit steps when clicking encoder button [`2644`](https://github.com/lvgl/lvgl/pull/2644)
- feat add support for rt-thread RTOS [`2660`](https://github.com/lvgl/lvgl/pull/2660)
- feat(disp): Enable rendering to display subsection [`2583`](https://github.com/lvgl/lvgl/pull/2583)
- feat(event, widgets) improve the parameter of LV_EVENT_DRAW_PART_BEGIN/END [`88c4859`](https://github.com/lvgl/lvgl/commit/88c485949fca2686357a7dee88d5730678ba9bc7)
- feat(docs) improvements to examples [`4b8c73a`](https://github.com/lvgl/lvgl/commit/4b8c73a5770657ab55bbe825f7887e28c55a8a4a)
- feat(obj) send LV_EVENT_DRAW_PART_BEGIN/END for MAIN and SCROLLBAR parts [`b203167`](https://github.com/lvgl/lvgl/commit/b203167c7583905e2cb4006e57a16432841a2353)
- feat(event) pass the scroll animation to LV_EVENT_SCROLL_BEGIN [`ca54ecf`](https://github.com/lvgl/lvgl/commit/ca54ecfe0eac880203d23b2d2244b9b63b9f7b77)
- feat(obj) place the scrollbar to the left with RTL base dir. [`906448e`](https://github.com/lvgl/lvgl/commit/906448ef6321f160859f21c5937180bb89d8ef1e)
- feat(textarea) remove the need of lv_textarea_set_align [`56ebb1a`](https://github.com/lvgl/lvgl/commit/56ebb1a4c8cc988482ac9f118fa3c654553db941)
- feat(rt-thread): support LVGL projects with GCC/Keil(AC5)/Keil(AC6)/IAR [`32d33fe`](https://github.com/lvgl/lvgl/commit/32d33fe4d9a38f6c215a6b9a631eb987339677ae)
- feat(docs) lazy load individual examples as well [`918d948`](https://github.com/lvgl/lvgl/commit/918d94801f2ee4ad7b6c075d96d2e9195459fbb8)
- perf(draw) ignore masks if they don't affect the current draw area [`a842791`](https://github.com/lvgl/lvgl/commit/a8427915c747dfe562f7f7e80adb6d1be5b2eeae)
- perf(refresh) optimize where to wait for lv_disp_flush_ready with 2 buffers [`d0172f1`](https://github.com/lvgl/lvgl/commit/d0172f14a454c98e6979322e7c2622a7001bb3e6)
- perf(draw) speed up additive blending [`3abe517`](https://github.com/lvgl/lvgl/commit/3abe517abf3b62366f2eb4bed77d5c7a691f7ed5)
### Fixes
- fix(bidi): add weak characters to the previous strong character's run [`2777`](https://github.com/lvgl/lvgl/pull/2777)
- fix(draw_img): radius mask doesn't work in specific condition [`2786`](https://github.com/lvgl/lvgl/pull/2786)
- fix(border_post): ignore bg_img_opa draw when draw border_post [`2788`](https://github.com/lvgl/lvgl/pull/2788)
- fix(refresh) switch to portable format specifiers [`2781`](https://github.com/lvgl/lvgl/pull/2781)
- fix(stm32) Mark unused variable in stm32 DMA2D driver [`2782`](https://github.com/lvgl/lvgl/pull/2782)
- fix(conf): Make LV_COLOR_MIX_ROUND_OFS configurable [`2766`](https://github.com/lvgl/lvgl/pull/2766)
- fix(misc): correct the comment and code style [`2769`](https://github.com/lvgl/lvgl/pull/2769)
- fix(draw_map) use existing variables instead function calls [`2776`](https://github.com/lvgl/lvgl/pull/2776)
- fix(draw_img): fix typos in API comments [`2773`](https://github.com/lvgl/lvgl/pull/2773)
- fix(draw_img):radius Mask doesn't work in Specific condition [`2775`](https://github.com/lvgl/lvgl/pull/2775)
- fix(txt) enhance the function of break_chars [`2327`](https://github.com/lvgl/lvgl/pull/2327)
- fix(vglite): update for v8 [`e3e3eea`](https://github.com/lvgl/lvgl/commit/e3e3eeaf8c1593d384c6537244a301cdc1abd3d9)
- fix(widgets) use lv_obj_class for all the widgets [`3fb8baf`](https://github.com/lvgl/lvgl/commit/3fb8baf503411e006765020f60f295a4be16ba2d)
- fix(refr) reduce the nesting level in lv_refr_area [`2df1282`](https://github.com/lvgl/lvgl/commit/2df12827dda3f217fa26d2c98445a9b3f1ff22ab)
- fix(pxp): update for v8 [`8a2a4a1`](https://github.com/lvgl/lvgl/commit/8a2a4a11c81d029ff737980b883c62dfbb4b44c6)
- fix(obj) move clean ups from lv_obj_del to lv_obj_destructor [`b063937`](https://github.com/lvgl/lvgl/commit/b06393747f61e36996a0cb22f9309c951f900ded)
- fix (draw) fix arc bg image drawing with full arcs [`c3b6c6d`](https://github.com/lvgl/lvgl/commit/c3b6c6dc64735e1bde492a8d5570f3e3a9500a0b)
- fix(pxp): update RTOS macro for SDK 2.10 [`00c3eb1`](https://github.com/lvgl/lvgl/commit/00c3eb197cb85e480809d97eb722589d75d81d94)
- fix(textarea) style update in oneline mode + improve sroll to cursor [`60d9a5e`](https://github.com/lvgl/lvgl/commit/60d9a5e493bf17ee9887ba44890d00905bc55970)
- fix(dropdown) forget the selected option on encoder longpress [`e66b935`](https://github.com/lvgl/lvgl/commit/e66b9350617eee15e94fb6a353283433e4c2c494)
- fix(obj) improve how the focusing indev is determined [`a04f2de`](https://github.com/lvgl/lvgl/commit/a04f2dea644787ea25ef988a43e10c5005c57066)
- fix(workflow) speed up MicroPython workflow [`38ad5d5`](https://github.com/lvgl/lvgl/commit/38ad5d548b2024f0f742ba769a6715fc376541a1)
- fix(test) do not including anything in test files when not running tests [`9043860`](https://github.com/lvgl/lvgl/commit/90438603ad020799b14bc9839a51dceedfdabd7a)
- fix(scroll) fire LV_EVENT_SCROLL_BEGIN in the same spot for both axes [`b158932`](https://github.com/lvgl/lvgl/commit/b1589326d41924292fbc2c62b474dec288bc9da5)
- fix(btnmatrix) fix button invalidation on focus change [`77cedfa`](https://github.com/lvgl/lvgl/commit/77cedfa08f3f8aec67c6a2fe8e5ae9bab5a0e7c7)
- fix(tlsf) do not use <assert.h> [`c9745b9`](https://github.com/lvgl/lvgl/commit/c9745b9c4ea9e7c6de4bd8ad9a0d8001bfb91165)
- fix(template) include lvgl.h in lv_port_*_template.c files [`0ae15bd`](https://github.com/lvgl/lvgl/commit/0ae15bd470548ff159f44e7c3f4b225ab3eec928)
- fix(docs) add margin for example description [`b5f632e`](https://github.com/lvgl/lvgl/commit/b5f632ee7a265ce4f2472522b422b8cd5366aaa9)
- fix(imgbtn) use the correct src in LV_EVENT_GET_SELF_SIZE [`04c515a`](https://github.com/lvgl/lvgl/commit/04c515adac764761e60094db789269130ac89b36)
- fix(color) remove extraneous cast for 8-bit color [`157534c`](https://github.com/lvgl/lvgl/commit/157534cdbfaa7b769114126f74c38661b99d025b)
- fix(workflow) use same Unix port variant for MicroPython submodules [`ac68b10`](https://github.com/lvgl/lvgl/commit/ac68b10e539ddb8bde47ec453a99f2b876e12c65)
- fix(docs) consider an example to be visible over a wider area [`145a0fa`](https://github.com/lvgl/lvgl/commit/145a0fad0857dad7f2066e7d22436827e0d3fd7d)
- fix(codecov) disable uploading coverage for pull requests [`27d88de`](https://github.com/lvgl/lvgl/commit/27d88de899e91cd5bb9fc69fe9d71cb180cfb44b)
- fix(arc) disable LV_OBJ_FLAG_SCROLL_CHAIN by default [`f172eb3`](https://github.com/lvgl/lvgl/commit/f172eb3fd78481d6076ead395abfd765646ad21e)
- fix(label) consider base dir lv_label_get_letter_pos in special cases [`6df5122`](https://github.com/lvgl/lvgl/commit/6df51225c261b252f0935804b0357d6e585da53d)
- fix(printf) add (int) casts to log messages to avoid warnings on %d [`d9d3f27`](https://github.com/lvgl/lvgl/commit/d9d3f271267e760c8459b65c392914143a58b89c)
- fix(test) silence make [`7610d38`](https://github.com/lvgl/lvgl/commit/7610d38bb044b1bd95dd68ab57f79f82e2527cca)
- fix(test) silence make [`37fd9d8`](https://github.com/lvgl/lvgl/commit/37fd9d8a24c276079ed26b5d6704bcefc9f8dc70)
- fix(calendar) update the MP example [`0bab4a7`](https://github.com/lvgl/lvgl/commit/0bab4a72cf769872a9adfd5bfa1c4536e6f909a8)
- fix(scroll) fix scroll_area_into_view with objects larger than the parent [`5240fdd`](https://github.com/lvgl/lvgl/commit/5240fdda5ccc33d166f8201818868add5d1d6d0d)
- fix(obj_pos) consider all alignments in content size calculation but only if x and y = 0 [`5b27ebb`](https://github.com/lvgl/lvgl/commit/5b27ebb4097166f8c4a50ee5d39249939bf79814)
- fix(test) add #if guard to exclude test related files from the build [`c12a22e`](https://github.com/lvgl/lvgl/commit/c12a22ee87681d1344696a3b9531e9100808eb85)
- fix(test) add #if guard to exclude test related files from the build [`fc364a4`](https://github.com/lvgl/lvgl/commit/fc364a466c0693aefa0401f5eddee2bbc3037ef0)
- fix(style) refresh ext. draw pad for padding and bg img [`37a5d0c`](https://github.com/lvgl/lvgl/commit/37a5d0c85ac28718f4f32eadff3ddaf6b474cf75)
- fix(draw) underflow in subpixel font drawing [`6d5ac70`](https://github.com/lvgl/lvgl/commit/6d5ac702ad20ac3092c224ca36e412b0d6cec321)
- fix(scrollbar) hide the scrollbar if the scrollble flag is removed [`188a946`](https://github.com/lvgl/lvgl/commit/188a9467b1bd45d42368a687736a9151d081c1e8)
- fix(color): minor fixes(#2767) [`a4978d0`](https://github.com/lvgl/lvgl/commit/a4978d0913be705caffe3c080524bb7915a5e3e2)
- fix(group) skip object if an of the parents is hidden [`5799c10`](https://github.com/lvgl/lvgl/commit/5799c1084398b365c7a9669406d4fbe258a501ef)
- fix(obj) fix size invalidation issue on padding change [`33ba722`](https://github.com/lvgl/lvgl/commit/33ba7225f55f0cb17f73ce891466c7ebe1327898)
- fix(label) do not bidi process text in lv_label_ins_text [`e95efc1`](https://github.com/lvgl/lvgl/commit/e95efc152f52b7495acb011353a55b3663f7860e)
- fix(refr) set disp_drv->draw_buf->flushing_last correctly with sw rotation [`c514bdd`](https://github.com/lvgl/lvgl/commit/c514bddd9b4064e2eba0c3ec4c7a51415acd74e4)
- fix(draw) fix drawing small arcs [`8081599`](https://github.com/lvgl/lvgl/commit/8081599e9b65c758bbdc0168f857515bebaf1c80)
- fix(chart) invalidation with LV_CHART_UPDATE_MODE_SHIFT [`d61617c`](https://github.com/lvgl/lvgl/commit/d61617cd67f792908a1554a44c663c73a41bb357)
- fix(dropdown) adjust the handling of keys sent to the dropdown [`e41c507`](https://github.com/lvgl/lvgl/commit/e41c50780495c7d6ac6a2b0edf12fc98c9d85a6b)
- fix(disp) be sure the pending scr load animation is finished in lv_scr_load_anim [`eb6ae52`](https://github.com/lvgl/lvgl/commit/eb6ae526432453e4b9dbc7a760cd65d164050548)
- fix(color) fox color premult precision with 16-bit color depth [`f334226`](https://github.com/lvgl/lvgl/commit/f3342269f272c474265700527f52d3ba92111531)
- fix(scrollbar) hide the scrollbar if the scrollable flag is removed [`d9c6ad0`](https://github.com/lvgl/lvgl/commit/d9c6ad0425e761d605124e4555adc72854fec4a6)
- fix(dropdown) fix list position with RTL base direction [`79edb37`](https://github.com/lvgl/lvgl/commit/79edb37b0ab5015111bade6074fda81ae101b91b)
- fix(obj) fix lv_obj_align_to with RTL base direction [`531afcc`](https://github.com/lvgl/lvgl/commit/531afcc6cec7f67df06e369a185aef6fdc85af7b)
- fix(chart) fix sending LV_EVENT_DRAW_PART_BEGIN/END for the cursor [`34b8cd9`](https://github.com/lvgl/lvgl/commit/34b8cd9c12604bc1029efa39bd66322b8b771dbe)
- fix(arduino) fix the prototype of my_touchpad_read in the LVGL_Arduino.ino [`1a62f7a`](https://github.com/lvgl/lvgl/commit/1a62f7a619faa93406bc5895ac3338c232de2226)
- fix(checkbox) consider the bg border when positioning the indicator [`a39dac9`](https://github.com/lvgl/lvgl/commit/a39dac9e5c82ecabd135953acafa335941ca0a89)
- fix(dropdown) send LV_EVENT_VALUE_CHANGED to allow styling of the list [`dae7039`](https://github.com/lvgl/lvgl/commit/dae7039803030f908986602b3ce308dc1c3974af)
- fix(keyboard) use LVGL heap functions instead of POSIX [`b20a706`](https://github.com/lvgl/lvgl/commit/b20a706112a3107db13bbd405991ece4cbe00a88)
- fix(blend) fix green channel with additive blending [`78158f0`](https://github.com/lvgl/lvgl/commit/78158f039f19eb17bf1b7c173922c1af26c1e528)
- fix(btnmatrix) do not show pressed, focused or focus key states on disabled buttons [`3df2a74`](https://github.com/lvgl/lvgl/commit/3df2a7444758d2df023f321ccb5931de44af2a48)
- fix(font) handle the last pixel of the glyphs in font loader correctly [`fa98989`](https://github.com/lvgl/lvgl/commit/fa9898941f8efa1966cb6f326d1eebdd31211d04)
- fix(table) fix an off-by-one issue in self size calculation [`ea2545a`](https://github.com/lvgl/lvgl/commit/ea2545ae5dade0845889174737d072137bbb6591)
- fix(chart) be sure the chart doesn't remain scrolled out on zoom out [`ad5b1bd`](https://github.com/lvgl/lvgl/commit/ad5b1bdc00a4a44e775a280f8b686353ef4f2a38)
- fix(docs) commit to meta repo as lvgl-bot instead of actual commit author [`f0e8549`](https://github.com/lvgl/lvgl/commit/f0e8549fe14d4e95aedcc98a63acce5a4ad1145b)
- fix(table) invalidate the table on cell value change [`cb3692e`](https://github.com/lvgl/lvgl/commit/cb3692e3029ae452eab04dce21715b7863a9f2a1)
- fix(tabview) fix with left and right tabs [`17c5744`](https://github.com/lvgl/lvgl/commit/17c57449eeae8a693ad5601cf4169cf44d57d5c9)
- fix(msgbox) create modals on top layer instead of act screen [`5cf6303`](https://github.com/lvgl/lvgl/commit/5cf6303e741ec22e2e87f69af4109855eb637e63)
- fix(theme) show disabled state on buttons of btnmatrix, msgbox and keyboard [`0be582b`](https://github.com/lvgl/lvgl/commit/0be582b391e60774d6158411b835b679b010a99b)
- fix(label) update lv_label_get_letter_pos to work with LV_BASE_DIR_AUTO too [`580e05a`](https://github.com/lvgl/lvgl/commit/580e05a0e1531d86d5229ade4ced2c336fbce634)
- fix(label) fix in lv_label_get_letter_pos with when pos==line_start [`58f3f56`](https://github.com/lvgl/lvgl/commit/58f3f5625c2b29278c3e122d8eeba4d9bc597db9)
- fix(gif) replace printf statement with LVGL logging [`56f62b8`](https://github.com/lvgl/lvgl/commit/56f62b8d7356017319d21d44a8f450705ec6486b)
- fix(docs) add fsdrv back [`64527a5`](https://github.com/lvgl/lvgl/commit/64527a5a1ba9d37883c1303a3d4ee1a41e9b4ed3)
- fix(table) remove unnecessary invalidation on pressing [`6f90f9c`](https://github.com/lvgl/lvgl/commit/6f90f9cefba0bc1ea74e737e0e659402f0309cf7)
- fix(chart) draw line chart indicator (bullet) [`fba37a3`](https://github.com/lvgl/lvgl/commit/fba37a30abd1b4d7af78a288fb61dccacc99da08)
- fix(anim) return the first anim if exec_cb is NULL in lv_anim_get() [`fb7ea10`](https://github.com/lvgl/lvgl/commit/fb7ea1040153bd0f2d5c282f9fb31add32c55ce9)
- fix(label) fix lv_label_get_letter_on with BIDI enabled [`192419e`](https://github.com/lvgl/lvgl/commit/192419e7bb300bd64b51d684827719fe1c22cfdb)
- fix(draw) fix gradient calculation of the rectangle is clipped [`13e3470`](https://github.com/lvgl/lvgl/commit/13e347055bd54c37e7fcb645120ea9ab3134ebec)
- fix(docs) use let instead of const for variable which gets changed [`3cf5751`](https://github.com/lvgl/lvgl/commit/3cf5751461d6a85974da4e5c66593736ae140a1a)
- fix(theme) fix the switch style in the default theme [`0c0dc8e`](https://github.com/lvgl/lvgl/commit/0c0dc8ea30289254732cbba7ada7fd4f092caf22)
- fix(tlsf) undef printf before define-ing it [`cc935b8`](https://github.com/lvgl/lvgl/commit/cc935b87f69e6107d12d9ba4a2c83103f7dd4356)
- fix(msgbox) prevent the buttons being wider than the msgbox [`73e036b`](https://github.com/lvgl/lvgl/commit/73e036bba748e8677f219f573cba5f82c4158a17)
- fix(obj) do not set the child's position in lv_obj_set_parent [`d89a5fb`](https://github.com/lvgl/lvgl/commit/d89a5fbbd2af33cf759c120e6a14b334099c4c98)
- fix(scroll) minor fixes on obj scroll handling [`a4128a8`](https://github.com/lvgl/lvgl/commit/a4128a83562e0daacd949333ba7cbfec650f8050)
- fix(table) consider border width for cell positions [`f2987b6`](https://github.com/lvgl/lvgl/commit/f2987b6591046f1384b0089187fd81da10834021)
- fix(log) be sure LV_LOG_... is not empty if logs are disabled [`47734c4`](https://github.com/lvgl/lvgl/commit/47734c4abedf6b6005069d15a8c4c2fcff73f85e)
- fix(obj) in lv_obj_move_to_index() do not send LV_EVENT_CHILD_CHANGED on all changed child [`32e8276`](https://github.com/lvgl/lvgl/commit/32e8276db7403d8dc9c9b9f0c77d331049e8c07d)
- fix(msgbox) directly store the pointer of all children [`eb5eaa3`](https://github.com/lvgl/lvgl/commit/eb5eaa39406473cd90a7f78d710ce950cbf47548)
- fix(draw) use the filtered colors in lv_obj_init_draw_xxx_dsc() functions [`78725f2`](https://github.com/lvgl/lvgl/commit/78725f23da24fe22543ab3388c87bf3cfbd0e51a)
- fix(arc) fix full arc invalidation [`98b9ce5`](https://github.com/lvgl/lvgl/commit/98b9ce599751c9de0421acd419430cc6ccd7cad9)
- chore(led) expose LV_LED_BRIGHT_MIN/MAX in led.h [`3f18b23`](https://github.com/lvgl/lvgl/commit/3f18b234f601edefb16b1ffdb0c539e823b1c025)
- fix(group) keep the focused object in lv_group_swap_obj [`a997147`](https://github.com/lvgl/lvgl/commit/a9971471ba34352a1d7b307977cb2f635b28a031)
- fix(obj) swap objects in the group too in lv_obj_swap() [`52c7558`](https://github.com/lvgl/lvgl/commit/52c7558ab46a7024e05499edb483f115b13086f0)
- fix(theme) use opacity on button's shadow in the default theme [`c5342e9`](https://github.com/lvgl/lvgl/commit/c5342e9324c492c70b65f8c228d44b7a290cf110)
- fix(win) enable clip_corner and border_post by default [`493ace3`](https://github.com/lvgl/lvgl/commit/493ace352fea0eaa37abccaa0938c0c4a12a995a)
- fix(draw) fix rectangle drawing with clip_corner enabled [`01237da`](https://github.com/lvgl/lvgl/commit/01237da474b9703fb544163db5f66645c2b6935c)
- fix(arc) fix other invalidation issues [`b0a7337`](https://github.com/lvgl/lvgl/commit/b0a733766daee1edfabaec8df4a5fedd0180ccaf)
- fix(canvas) invalidate the image on delete [`a1b362c`](https://github.com/lvgl/lvgl/commit/a1b362c98622ecbc063cfb17fb091fdab4522e8a)
- fix(msgbox) return the correct pointer from lv_msgbox_get_text [`50ea6fb`](https://github.com/lvgl/lvgl/commit/50ea6fb3fefb3a6edc958154c575dcdcacbfdb3a)
- fix(bidi) fix the handling of LV_BASE_DIR_AUTO in several widgets [`7672847`](https://github.com/lvgl/lvgl/commit/7672847ce325e909981582b4153993025da7fe50)
- fix(build) remove main component dependency (#2420) [`f2c2393`](https://github.com/lvgl/lvgl/commit/f2c2393b305cd71d2fc01ff8945965dccb8488b4)
- fix(log) fix warning for empty log macros [`4dba8df`](https://github.com/lvgl/lvgl/commit/4dba8df2a196fc7a2b7a8686efb6e47fc6cf0fc6)
- fix(theme) improve button focus of keyboard [`2504b7e`](https://github.com/lvgl/lvgl/commit/2504b7e4361ad8009e005faf112987585c2e8356)
- fix(tabview) send LV_EVENT_VALUE_CHANGED only once [`933d282`](https://github.com/lvgl/lvgl/commit/933d2829aca8bc269c0b481f2a535274626374bc)
- fix(obj style) fix children reposition if the parent's padding changes. [`57cf661`](https://github.com/lvgl/lvgl/commit/57cf6610a9ec2e6458035abfdaa5554f4296c89c)
- fix(template) update indev template for v8 [`d8a3d3d`](https://github.com/lvgl/lvgl/commit/d8a3d3d0d759ad0145f134a3f08433f3fdffcb75)
- fix(obj) detecting which indev sent LV_EVENT_FOCUS [`f03d4b8`](https://github.com/lvgl/lvgl/commit/f03d4b8cb9928077a04b839db0bd5c625919d903)
- fix(roller) adjust the size of the selected area correctly [`01d1c87`](https://github.com/lvgl/lvgl/commit/01d1c873e19d0d77e1444ba79468db63f26a448a)
- fix(imgbtn) consider width==LV_SIZE_CONTENT if only mid. img is set [`7e49f48`](https://github.com/lvgl/lvgl/commit/7e49f48894c5c3eb9793dbf1c8630f3cfdc3c091)
- fix(mem) add lv_ prefix to tlsf functions and types [`0d52b59`](https://github.com/lvgl/lvgl/commit/0d52b59cb16dda377f8a1ac581a851b830b7bf53)
- fix(pxp) change LV_COLOR_TRANSP to LV_COLOR_CHROMA_KEY to v8 compatibility [`81f3068`](https://github.com/lvgl/lvgl/commit/81f3068dd77d47e7079e6697ea5d00f69202c1bd)
### Examples
- example(chart) add area chart example [`2507`](https://github.com/lvgl/lvgl/pull/2507)
- example(anim) add demo to use cubic-bezier [`2393`](https://github.com/lvgl/lvgl/pull/2393)
- feat(example) chart example to add gap between the old and new data [`2565`](https://github.com/lvgl/lvgl/pull/2565)
- feat(example) add lv example list 2 [`2545`](https://github.com/lvgl/lvgl/pull/2545)
- feat(examples) add MicroPython version of lv_example_anim_3 and allow loading roller font dynamically [`2412`](https://github.com/lvgl/lvgl/pull/2412)
- feat(examples) added MP version of second tabview example [`2347`](https://github.com/lvgl/lvgl/pull/2347)
- fix(examples) import 'u'-prefixed versions of modules [`2365`](https://github.com/lvgl/lvgl/pull/2365)
- fix(examples) remove cast in MP scripts [`2354`](https://github.com/lvgl/lvgl/pull/2354)
- fix(examples) fix MicroPython examples and run the examples with CI [`2339`](https://github.com/lvgl/lvgl/pull/2339)
- fix(examples) align with renamed Micropython APIs [`2338`](https://github.com/lvgl/lvgl/pull/2338)
- fix(examples) adjust canvas example for MicroPython API change [`52d1c2e`](https://github.com/lvgl/lvgl/commit/52d1c2e5b53eda4270abc0caa0eb309b35c010c8)
- fix(example) revert test code [`77e2c1f`](https://github.com/lvgl/lvgl/commit/77e2c1ff3d3ff035a3613f2ed0e5538513e8b4a1)
- feat(example) add checkbox example for radio buttons [`d089b36`](https://github.com/lvgl/lvgl/commit/d089b364e700d1216813106f7b4dfa6cee9aa806)
- feat(example) add text with gradient example [`462fbcb`](https://github.com/lvgl/lvgl/commit/462fbcbf49f47b9f329b6c15d2ca04ef09806cd9)
- fix(examples) exclude example animimg images if animimg is disabled [`4d7d306`](https://github.com/lvgl/lvgl/commit/4d7d30677af9ef158fe51fb1d8900d234ea5e181)
- fix(example) adjust the object sizes in lv_example_anim_timeline_1() [`71a10e4`](https://github.com/lvgl/lvgl/commit/71a10e4ecd4acfddcea279a0b5da219dfb002ff7)
- fix(example) revert text code from lv_example_checkbox_2 [`28e9593`](https://github.com/lvgl/lvgl/commit/28e9593e5802a2e7d493515059c6327e60ccbf28)
- docs(filesystem) update to v8 [`7971ade`](https://github.com/lvgl/lvgl/commit/7971ade47b15898efb6fca17d34ca30f1ee5c926)
- docs(style) complete the description of style the properties [`55e8846`](https://github.com/lvgl/lvgl/commit/55e8846871f812f888c8354e4ec8974ac0650165)
- docs example list fixes [`cd600d1`](https://github.com/lvgl/lvgl/commit/cd600d105650bae08f9732a654c6a2c85e610cd5)
- docs(style) complete the description of style the properties [`ff087da`](https://github.com/lvgl/lvgl/commit/ff087dafb4ecd016ee4920bfe4f162b1db58f7cb)
- docs(README) update links, examples, and add services menu [`3471bd1`](https://github.com/lvgl/lvgl/commit/3471bd1c698ee58f6632415559dcc34e9d2ee3c0)
- docs(image) mention the frame_id parameter of lv_img_decoder_open [`2433732`](https://github.com/lvgl/lvgl/commit/2433732570a817f566308e025d89227a8c650f5f)
- test add build test again, add dropdown test, integrate gcov and gvocr [`e35b1d0`](https://github.com/lvgl/lvgl/commit/e35b1d04bdc7d531d72ebce7d1f031be2631e776)
- test(dropdown) add tess for keypad and encoder [`4143b80`](https://github.com/lvgl/lvgl/commit/4143b804c8f4b4324141ad0f529bac4e9acf1442)
- test add keypad and encoder emulators [`e536bb6`](https://github.com/lvgl/lvgl/commit/e536bb6325728db21ef5c729a99f2161a8125625)
- test add move tests to test_cases and test_runners directories [`e9e010a`](https://github.com/lvgl/lvgl/commit/e9e010a8468ee307c350e071251f22459173e601)
- test fix CI build error [`c38cae2`](https://github.com/lvgl/lvgl/commit/c38cae22fbf6cef7564fbebe2145a7def20d52e1)
- ci add config for 8bpp [`3eacc59`](https://github.com/lvgl/lvgl/commit/3eacc5923c0a554e7ff4489776a8982dfc142115)
- test move more source files to src folder [`3672f87`](https://github.com/lvgl/lvgl/commit/3672f873328b4471ac9d5d23696f7bc99a87bc43)
- test update CI for the new tests [`a3898b9`](https://github.com/lvgl/lvgl/commit/a3898b931e81860acf197bc88fd3dd6f8885eb2c)
- test add move tests to test_cases and test_runners directories [`d2e735e`](https://github.com/lvgl/lvgl/commit/d2e735ef36bd99c16ccaa281dcaa5f418e2dec98)
- test add 3rd party libs to all tests and also fix them [`7a95fa9`](https://github.com/lvgl/lvgl/commit/7a95fa9e2de9639a3c2f1990ff63b467be54a7aa)
- test(arc): add test case for adv_hittest [`e83df6f`](https://github.com/lvgl/lvgl/commit/e83df6f14de1a9eb1d137b123fac96c25a1b7715)
- ci create check for lv_conf_internal.h [`5d8285e`](https://github.com/lvgl/lvgl/commit/5d8285e2d37e19670c1daeff229e1dc331f053c4)
- test fix warning and docs build error [`d908f31`](https://github.com/lvgl/lvgl/commit/d908f31f8f50024d8b3c8d0a11aff9cc1b011049)
- ci(micropython) add rp2 port [`1ab5c96`](https://github.com/lvgl/lvgl/commit/1ab5c9689f61fd2991653beec7d023472fc96239)
- test(dropdown) remove dummy test case [`9fb98da`](https://github.com/lvgl/lvgl/commit/9fb98da8a280dc3d5753da1d2aa79eeb1cba47e0)
- ci(codecov) hide statuses on commits for now [`0b7be77`](https://github.com/lvgl/lvgl/commit/0b7be778a29412fe5562a736855121d19350889c)
- ci(docs) run apt-get update before installation [`f215174`](https://github.com/lvgl/lvgl/commit/f215174999a18b0e5904e97bfda48f3b81271aa1)
- test fix LV_USE_LOG_LEVEL -> LV_LOG_LEVEL typo [`80f0b09`](https://github.com/lvgl/lvgl/commit/80f0b09e34596564ca6ec7c23d148f4ce2e17ca3)
- ci(micropython) add GCC problem matcher [`ab316a0`](https://github.com/lvgl/lvgl/commit/ab316a07bc4d89a633fdd00bc7ff8c5db4b00ad8)
- test convert Makefile to CMake (#2495) [`9c846ee`](https://github.com/lvgl/lvgl/commit/9c846ee493862ef11b46942a6e5af3c1ed8468d1)
### Others
- chore: replace (void)xxx with LV_UNUSED(xxx) [`2779`](https://github.com/lvgl/lvgl/pull/2779)
- added lv_obj_move_up() and lv_obj_move_down() [`2467`](https://github.com/lvgl/lvgl/pull/2467)
- Fix buf name error for "lv_port_disp_template.c" and optimize the arduino example [`2475`](https://github.com/lvgl/lvgl/pull/2475)
- Fix two examples in the docs with new v8 api [`2486`](https://github.com/lvgl/lvgl/pull/2486)
- kconfig: minor fix for default dark theme option [`2426`](https://github.com/lvgl/lvgl/pull/2426)
- doc(table) update doc on cell merging [`2397`](https://github.com/lvgl/lvgl/pull/2397)
- added example lv_example_anim_timeline_1.py [`2387`](https://github.com/lvgl/lvgl/pull/2387)
- refactor(printf) add printf-like function attribute to _lv_txt_set_text_vfmt and lv_label_set_text_fmt [`2332`](https://github.com/lvgl/lvgl/pull/2332)
- chore(assert) add warning about higher memory usage if LV_USE_ASSERT_STYLE is enabled [`33e4330`](https://github.com/lvgl/lvgl/commit/33e433008e23b48540e83bc5399fd0ccb9e90630)
- chore(stale) disable on forks [`93c1303`](https://github.com/lvgl/lvgl/commit/93c1303ee7989d25216262e1d0ea244b59b975f6)
- Revert "fix(tests) remove src/test_runners when cleaning" [`ae15a1b`](https://github.com/lvgl/lvgl/commit/ae15a1bbfe122115e5c8ac1f707929673843ad37)
- style fix usage of clang-format directives [`2122583`](https://github.com/lvgl/lvgl/commit/2122583ec23d82422e1e3d6f2b5a20745fa5dd6d)
- Revert "fix(indev) focus on objects on release instead of press" [`f61b2ca`](https://github.com/lvgl/lvgl/commit/f61b2ca45502472cde8ac0983b73dbf153de2b20)
v8.0 brings many new features like simplified and more powerful scrolling, new layouts inspired by CSS Flexbox and Grid, simplified and improved widgets, more powerful events, hookable drawing, and more.
-`...disp_buf...` is renamed to `draw_buf`. See an initialization example [here](https://github.com/lvgl/lv_sim_eclipse_sdl/blob/release/v8.0/main.c#L128-L141).
To better utilize GPUs, from this version GPU usage can be integrated into LVGL. In `lv_conf.h` any supported GPUs can be enabled with a single configuration option.
Right now, only ST's DMA2D (Chrom-ART) is integrated. More will in the upcoming releases.
-`dropdown`: Completely reworked. Now creates a separate list when opened and can be dropped to down/up/left/right.
-`label`: `body_draw` is removed, instead, if its style has a visible background/border/shadow etc it will be drawn. Padding really makes the object larger (not just virtually as before)
-`btn`: doesn't store styles for each state because it's done naturally in the new style system.
-`calendar`: highlight the pressed datum. The used styles are changed: use `LV_CALENDAR_PART_DATE` normal for normal dates, checked for highlighted, focused for today, pressed for the being pressed. (checked+pressed, focused+pressed also work)
-`chart`: only has `LINE` and `COLUMN` types because with new styles all the others can be described. LV_CHART_PART_SERIES sets the style of the series. bg_opa > 0 draws an area in LINE mode. `LV_CHART_PART_SERIES_BG` also added to set a different style for the series area. Padding in `LV_CHART_PART_BG` makes the series area smaller, and it ensures space for axis labels/numbers.
-`linemeter`, `gauge`: can have background if the related style properties are set. Padding makes the scale/lines smaller. scale_border_width and scale_end_border_width allow to draw an arc on the outer part of the scale lines.
-`gauge`: `lv_gauge_set_needle_img` allows use image as needle
-`canvas`: allow drawing to true color alpha and alpha only canvas, add `lv_canvas_blur_hor/ver` and rename `lv_canvas_rotate` to `lv_canvas_transform`
- Change the built-in fonts to [Montserrat](https://fonts.google.com/specimen/Montserrat) and add built-in fonts from 12 px to 48 px for every 2nd size.
- If you have a running project, the most difficult part of the migration is updating to the new style system. Unfortunately, there is no better way than manually updating to the new format.
