L'éditeur glisser-déposer LVGL ultime & constructeur de GUI.

Journal des modifications de l'éditeur LVGL PicoPixel

Nouvelles fonctionnalités du constructeur de GUI, améliorations d'UI embarquée et correctifs d'export pour chaque version.

Suivez chaque mise à jour de l'éditeur visuel LVGL et du constructeur de GUI de PicoPixel. Nous publions régulièrement des améliorations — du support de widgets et des améliorations du simulateur aux workflows d'UI embarquée et aux améliorations d'export de code C. Consultez toutes les fonctionnalités, ou vous souhaitez en demander une ? Visitez notre GitHub ou rejoignez le Reddit.

July 16, 2026

v0.40.0

Added

  • New LVGL Line widget for drawing and styling lines, including endpoint options and rotation support
  • More built-in fonts — 20 of the most popular Google Fonts are now ready to use in your projects
  • New built-in icon browser with more than 20 icon libraries, pack details, and one search that finds icons across every library
  • Event indicators in the Layers panel, so it is easy to see which layers have interactions attached

Changed

  • Refined editor top bar, mode switcher, and sidebars for cleaner spacing, clearer controls, and more consistent styling
  • Improved font browsing and editing — preview custom text inline, then update saved fonts without rebuilding their existing uses
  • Asset libraries are easier to manage: deleted media no longer appears, linked libraries have their own allowance, and saved asset capacity is now shared and tailored to your plan
  • Hidden groups and screens are now skipped from the simulator and LVGL export by default, including everything they contain
  • Content-sized widgets can now automatically fit their contents, while the property panel shows only controls that apply to the selected widget
  • Project Settings now keeps export options organized separately and makes switching between standard and round displays more reliable
  • Improved screen, layer, color, and import controls throughout the editor, including simpler token imports and clearer settings for the selected screen
  • PicoPixel file thumbnails now travel with exported and imported files, keeping dashboard previews intact
  • Plan and account messaging now better reflects your available capacity, subscription tier, and localized billing notices

Fixed

  • LVGL exports now retain custom pivot points and the intended stacking order of nested widgets
  • Dropdown menus, screen colors, and visibility changes now display reliably in the editor and simulator
  • Improved the simulator, canvas rendering, and drag-and-drop so widgets stay aligned and move smoothly across screens
  • Position and size values using pixels or percentages now stay consistent in the editor, preview, and exported project, including nested and animated widgets
  • The color picker can now sample colors directly from rendered LVGL widgets
  • Rotation controls now use stable whole-degree values, and screen titles hide correctly at low zoom levels
  • Removed stray event-connector artifacts outside the active screen

July 2, 2026

v0.30.0

Added

  • LVGL themes are here — create color themes for your embedded UI and switch between them with one click. Link any LVGL widget color to a theme color in the color picker, and toggling the theme instantly recolors every linked widget across all your screens
  • New "Set Theme" event action — wire a button (or any LVGL event) to apply a specific theme or cycle through your themes, fully supported in the exported LVGL C code
  • Gradient support — you can now design with gradient colors on your LVGL widgets, from the GUI editor all the way to your device
  • New Export Settings in the project modal — skip image #include lines for toolchains like Arduino IDE that auto-compile every file (no more duplicate-definition errors), and a new "Unused Assets" toggle that lets you force-export assets even if no widget uses them yet
  • Simplified theming workflow in the new Theming tab — create themes and theme colors with a clean Theme → Colors flow; the technical details are handled for you behind the scenes
  • Label sizing modes — choose between Hug (auto-size to text) and Fixed (set exact width/height), unlocking proper text alignment and long-text behaviors like wrap, dots, scroll, and clip
  • Drag and drop images, animations, and fonts from the Assets sidebar straight onto the LVGL GUI editor canvas to instantly create widgets
  • Pasting a screen with a different resolution than your project now shows a clear warning instead of silently misplacing content

Changed

  • Exported LVGL color code fully overhauled — all colors (asset palettes, common constants, and theme tables) now live in dedicated colors.h/colors.c files, so tweaking colors after export only takes a single edit
  • Gradient colors now export into the color palette too, so you can adjust them after export
  • Smaller LVGL export ZIPs — fonts that no widget uses are no longer exported by default (this could previously add hundreds of KB); flip the "Unused Assets" toggle to "Included" if you want everything
  • The LVGL include path setting is now a free-form text field with a reset button, so any custom include line works for your platform
  • All exported C files now share one central LVGL include, so relocating LVGL in your embedded project needs just one edit instead of many
  • The Theming sidebar is cleaner and more compact — inline theme renaming, collapsible theme color groups, and sections that stay open while you work

Fixed

  • LVGL label alignment now works correctly, along with long-text modes
  • Per-state background images and colors now render correctly — a state's background no longer hides behind another state's image, with smooth crossfades between states
  • Rotating a widget then undoing or redoing now updates everything together in one step
  • Switching themes is now a single undo/redo step
  • Pasting LVGL widgets copied on Windows no longer fails or freezes the page
  • Renaming or deleting a theme now cleans up every reference to it, and semi-transparent theme colors no longer show as black swatches
  • Sprite and animated-image files now count correctly toward your storage usage

June 10, 2026

v0.11.0

Added

  • Animated image widget — build looping image animations from a set of frames, with playback controls, a frame picker, and the option to save reusable animation sets to your library
  • Sprite widget — multi-phase animations where each phase has its own frames, timing, and repeat settings, perfect for game-style characters and pets that switch between states
  • Event actions for animations and sprites — start, stop, restart, or switch phases in response to button presses, sensors, or your own firmware triggers, with everything carried through to the exported C code
  • Custom Event triggers — fire animations, screen changes, and other actions straight from your device's code (servo callbacks, sensor thresholds, custom logic), with ready-made helper functions in the export
  • Round display support — switch a screen between standard and circular shapes in Project Settings, with the round look applied in the editor, simulator, dashboard thumbnails, and export
  • Submit a Sprite or Template — new settings pages to share your creations with the community, plus links to a submission guide
  • Community templates can now be opened directly in PicoPixel from a shareable link
  • Per-widget anti-aliasing and locked aspect-ratio controls for sharper, proportionally-scaled images, animations, and sprites
  • Stronger account security — automatic lockout after repeated failed logins, early warnings before lockout, and protections against bots and spam sign-ups
  • "Create an account" and "Already have an account?" links added to the login and register pages, plus clearer messaging when an account is temporarily locked
  • Higher capacity — projects can now hold up to 128 images (previously 64)
  • Choose your LVGL include style in Project Settings so the exported C code matches your platform's conventions

Changed

  • "Work email" is now simply "Email" everywhere, and the newsletter checkbox was removed from sign-up
  • "Project/Projects" and "Workspace/Workspaces" labels were swapped across the app, and saved "Widgets" are now called "Components" everywhere for clearer naming
  • Screen limit raised to 500 and the usage meter removed, so large projects no longer hit a wall
  • New widgets now appear on the canvas instantly instead of after a short delay
  • Settings sidebar tidied up with a Discord feedback link, cleaner section dividers, and updated guide links
  • Exported project documentation renamed to a cleaner README.md and expanded to cover animations, sprites, and round displays
  • Faster, more reliable loading of fonts and graphics in production
  • Translations expanded and synced across many more languages, including Brazilian Portuguese, Russian, Italian, Hindi, Indonesian, Ukrainian, Czech, Arabic, and more

Fixed

  • Animated images and sprites no longer tile, show black borders, or display gray boxes when scaled or left empty — they now zoom to fit and show a clear placeholder
  • Fixed a range of crashes when deleting screens, duplicating files near the storage limit, removing the last widget property, or viewing default styles on image and animation widgets
  • Animations now play back cleanly without leftover timers, stale frames, or stacked previews carrying over between sessions
  • Animation colors now render correctly on hardware that uses swapped color formats
  • Round displays now apply correctly in the simulator, dashboard thumbnails, and exported code
  • Pasting a screen now places it correctly at the top level instead of nesting it inside another screen
  • Exported images no longer tile when their proportions differ from the widget

May 14, 2026

v0.10.0

Added

  • Animation mode with a full timeline for creating, editing, previewing, and saving LVGL widget animations
  • Keyframes for position, size, and opacity, with timeline scrubbing, easing paths, loop/once playback, editable timing, and event actions that can play animations in previews and exported LVGL projects
  • Workspace activity console for watching widget, font, event, and export activity while building embedded LVGL GUI projects
  • Bundled font picker with curated fonts, live previews, font weights, multi-size presets, and guided controls for non-Latin and Asian-language text
  • New Animation, Fonts, and Events example templates for LVGL GUI builder projects, with refreshed dashboard thumbnails

Changed

  • Build, Design, and Animation modes are now separated more clearly in the LVGL GUI editor, so animation work stays out of normal design editing
  • The sidebar now has always-visible Layer controls, rotation and pivot controls, and inline Label text styling for faster LVGL GUI editor workflows
  • Font creation now supports many more languages and writing systems, including Arabic, Hebrew, Thai, Greek, Cyrillic, Devanagari, Bengali, Vietnamese, Chinese, Japanese, and Korean
  • Font uploads now give clearer help when a file cannot be converted and handle larger multilingual fonts more reliably
  • LVGL C exports now better match the GUI editor preview for animations, image fitting, event actions, custom font symbols, and right-to-left text
  • Events now preserve more interaction settings across preview, import, and export, including property changes and animation playback actions
  • Workspace limits are now checked before template imports, library imports, duplicates, and drag-and-drop imports, with clearer warnings when a project is at capacity

Fixed

  • Animation previews no longer leak animated positions, sizes, or opacity back into design mode
  • Rotated and animated widgets now keep selection outlines, handles, measurements, and canvas rendering aligned
  • Widget movement and resizing now snap more accurately to the pixel grid, reducing small visual offsets after edits
  • LVGL viewer previews now restart more cleanly so events and animations can replay without stale screen state
  • Imported images, portable PicoPixel templates, bundled fonts, and newly created fonts now relink and apply more reliably
  • Label Fill/Text controls and default design-mode text color were restored where they had gone missing

April 26, 2026

v0.9.0

Added

  • Color depth simulation for LVGL GUI editor projects — select 16-bit, 16 sw-bit, or 8-bit in Project Settings to live-preview quantized colors matching your target hardware
  • LVGL events now support calling named functions directly in the simulator
  • AI context file included in every LVGL export — a concise project summary that helps AI coding assistants understand your embedded UI structure with fewer tokens, so agents work faster and more accurately out of the box

Changed

  • Project Settings modal redesigned with LVGL export controls, share actions, and a usage sidebar
  • Export button restyled and renamed to "Export LVGL UI"
  • Default dashboard tab is now Drafts instead of Projects
  • Image asset previews show a checkerboard background for transparent PNGs
  • Screen resolution changes now instantly re-render the LVGL GUI editor canvas without a page refresh
  • LVGL export ZIP renamed to picopixel_lvgl_ui.zip to avoid confusion with other tools

Removed

  • Legacy design sidebar panels for non-LVGL shapes — right panel now shows only layer controls and dimensions

Fixed

  • Background images on LVGL panels, containers, and buttons now export and render correctly
  • LVGL events overhaul — Set Opacity, Set Text, Set Properties, Set State, Modify Flag, and Call Function actions now fire correctly in Play mode and export working C callbacks
  • Click and input events now work on all LVGL widget types, not just buttons
  • Image assets from shared libraries now clone into the current file, preventing broken references
  • Asset library images display correctly in the sidebar after importing a .picopixel file
  • Custom fonts apply immediately in the LVGL GUI editor without needing to click away and back

March 25, 2026

v0.8.2

Fixed

  • Grouped LVGL widget assets now preserve group hierarchy during instantiation instead of flattening children
  • New LVGL widget name counter increments from current highest number rather than reusing last created index
  • LVGL widget assets no longer require a page refresh to render after memory allocation during init

Changed

  • Update the LVGL speedometer example template after grouping and font fixes

March 8, 2026

v0.8.1

Fixed

  • Resolved an issue where LVGL widgets placed inside an LVGL GUI editor canvas group could sometimes be missing from the exported C code
  • The preview panel now correctly detects LVGL widgets nested within non-LVGL objects on the LVGL GUI editor canvas

February 25, 2026

v0.8.0

Fixed

  • Custom LVGL font export now produces correct, standalone C source files — previously exported fonts could fail to compile or load at runtime
  • Font identifiers in generated LVGL code are now guaranteed to be valid C names, preventing build errors with certain font names
  • Fonts created in the LVGL GUI editor before this fix now show a clear warning during export and gracefully fall back to the default font

Changed

  • Improved security of the LVGL font conversion pipeline

February 16, 2026

v0.7.0

Added

  • Cross-file copy/paste — LVGL widgets now carry their fonts and images when pasted between files
  • Image Fit/Crop mode — resize images proportionally or crop, with matching LVGL C code export
  • LVGL groups can now be freely moved within screen hierarchies
  • Library fonts are now available across all workspaces

Changed

  • New branded loading animation replaces the previous splash screen loader
  • Streamlined context menu with LVGL-relevant actions only
  • Improved performance for background tabs and large embedded UI project layouts
  • Removed legacy drawing tools (pen, path, curve) to keep the LVGL GUI editor focused

Fixed

  • LVGL widget drag and scaling no longer behaves erratically during group moves
  • Background color and opacity now clear correctly when toggling styles off
  • LVGL asset panel no longer shows duplicate ghost images

February 14, 2026

v0.6.0

Added

  • PicoPixel is live — open beta launch for the visual LVGL GUI builder
  • Visual drag-and-drop LVGL GUI editor with full widget palette
  • Live LVGL simulator powered by WebAssembly
  • Production-ready C code export (LVGL 8.x) with no proprietary dependencies
  • Real-time collaborative editing with live cursors and annotations
  • Built-in version control with session history and rollback
  • Visual events editor for wiring widget interactions without code
  • Reusable LVGL assets library for widgets, images, fonts, and colors
  • Shareable simulator links for team and client reviews
  • Custom font management with automatic LVGL conversion

Known Issues

  • LVGL widget animations are not yet supported in the GUI editor or export
  • LVGL event editor flow needs additional testing — some edge cases may not export correctly
  • Minor UI quirks in the LVGL property panel under certain widget configurations
  • Performance may degrade on very large embedded UI projects with 50+ screens
  • This is an open beta — core workflows are stable, and we are actively shipping improvements