Release notes for the PicoPixel LVGL editor.https://picopixel.io/enhttps://picopixel.io/changelog/#v0.40.0https://picopixel.io/changelog/#v0.40.0Thu, 16 Jul 2026 00:00:00 GMT<h3>Added</h3><ul><li>New LVGL Line widget for drawing and styling lines, including endpoint options and rotation support</li><li>More built-in fonts — 20 of the most popular Google Fonts are now ready to use in your projects</li><li>New built-in icon browser with more than 20 icon libraries, pack details, and one search that finds icons across every library</li><li>Event indicators in the Layers panel, so it is easy to see which layers have interactions attached</li></ul><h3>Changed</h3><ul><li>Refined editor top bar, mode switcher, and sidebars for cleaner spacing, clearer controls, and more consistent styling</li><li>Improved font browsing and editing — preview custom text inline, then update saved fonts without rebuilding their existing uses</li><li>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</li><li>Hidden groups and screens are now skipped from the simulator and LVGL export by default, including everything they contain</li><li>Content-sized widgets can now automatically fit their contents, while the property panel shows only controls that apply to the selected widget</li><li>Project Settings now keeps export options organized separately and makes switching between standard and round displays more reliable</li><li>Improved screen, layer, color, and import controls throughout the editor, including simpler token imports and clearer settings for the selected screen</li><li>PicoPixel file thumbnails now travel with exported and imported files, keeping dashboard previews intact</li><li>Plan and account messaging now better reflects your available capacity, subscription tier, and localized billing notices</li></ul><h3>Fixed</h3><ul><li>LVGL exports now retain custom pivot points and the intended stacking order of nested widgets</li><li>Dropdown menus, screen colors, and visibility changes now display reliably in the editor and simulator</li><li>Improved the simulator, canvas rendering, and drag-and-drop so widgets stay aligned and move smoothly across screens</li><li>Position and size values using pixels or percentages now stay consistent in the editor, preview, and exported project, including nested and animated widgets</li><li>The color picker can now sample colors directly from rendered LVGL widgets</li><li>Rotation controls now use stable whole-degree values, and screen titles hide correctly at low zoom levels</li><li>Removed stray event-connector artifacts outside the active screen</li></ul>https://picopixel.io/changelog/#v0.30.0https://picopixel.io/changelog/#v0.30.0Thu, 02 Jul 2026 00:00:00 GMT<h3>Added</h3><ul><li>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</li><li>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</li><li>Gradient support — you can now design with gradient colors on your LVGL widgets, from the GUI editor all the way to your device</li><li>New Export Settings in the project modal — skip image <code>#include</code> 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</li><li>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</li><li>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</li><li>Drag and drop images, animations, and fonts from the Assets sidebar straight onto the LVGL GUI editor canvas to instantly create widgets</li><li>Pasting a screen with a different resolution than your project now shows a clear warning instead of silently misplacing content</li></ul><h3>Changed</h3><ul><li>Exported LVGL color code fully overhauled — all colors (asset palettes, common constants, and theme tables) now live in dedicated <code>colors.h</code>/<code>colors.c</code> files, so tweaking colors after export only takes a single edit</li><li>Gradient colors now export into the color palette too, so you can adjust them after export</li><li>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</li><li>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</li><li>All exported C files now share one central LVGL include, so relocating LVGL in your embedded project needs just one edit instead of many</li><li>The Theming sidebar is cleaner and more compact — inline theme renaming, collapsible theme color groups, and sections that stay open while you work</li></ul><h3>Fixed</h3><ul><li>LVGL label alignment now works correctly, along with long-text modes</li><li>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</li><li>Rotating a widget then undoing or redoing now updates everything together in one step</li><li>Switching themes is now a single undo/redo step</li><li>Pasting LVGL widgets copied on Windows no longer fails or freezes the page</li><li>Renaming or deleting a theme now cleans up every reference to it, and semi-transparent theme colors no longer show as black swatches</li><li>Sprite and animated-image files now count correctly toward your storage usage</li></ul>https://picopixel.io/changelog/#v0.11.0https://picopixel.io/changelog/#v0.11.0Wed, 10 Jun 2026 00:00:00 GMT<h3>Added</h3><ul><li>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</li><li>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</li><li>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</li><li>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</li><li>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</li><li>Submit a Sprite or Template — new settings pages to share your creations with the community, plus links to a submission guide</li><li>Community templates can now be opened directly in PicoPixel from a shareable link</li><li>Per-widget anti-aliasing and locked aspect-ratio controls for sharper, proportionally-scaled images, animations, and sprites</li><li>Stronger account security — automatic lockout after repeated failed logins, early warnings before lockout, and protections against bots and spam sign-ups</li><li>"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</li><li>Higher capacity — projects can now hold up to 128 images (previously 64)</li><li>Choose your LVGL include style in Project Settings so the exported C code matches your platform's conventions</li></ul><h3>Changed</h3><ul><li>"Work email" is now simply "Email" everywhere, and the newsletter checkbox was removed from sign-up</li><li>"Project/Projects" and "Workspace/Workspaces" labels were swapped across the app, and saved "Widgets" are now called "Components" everywhere for clearer naming</li><li>Screen limit raised to 500 and the usage meter removed, so large projects no longer hit a wall</li><li>New widgets now appear on the canvas instantly instead of after a short delay</li><li>Settings sidebar tidied up with a Discord feedback link, cleaner section dividers, and updated guide links</li><li>Exported project documentation renamed to a cleaner <code>README.md</code> and expanded to cover animations, sprites, and round displays</li><li>Faster, more reliable loading of fonts and graphics in production</li><li>Translations expanded and synced across many more languages, including Brazilian Portuguese, Russian, Italian, Hindi, Indonesian, Ukrainian, Czech, Arabic, and more</li></ul><h3>Fixed</h3><ul><li>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</li><li>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</li><li>Animations now play back cleanly without leftover timers, stale frames, or stacked previews carrying over between sessions</li><li>Animation colors now render correctly on hardware that uses swapped color formats</li><li>Round displays now apply correctly in the simulator, dashboard thumbnails, and exported code</li><li>Pasting a screen now places it correctly at the top level instead of nesting it inside another screen</li><li>Exported images no longer tile when their proportions differ from the widget</li></ul>https://picopixel.io/changelog/#v0.10.0https://picopixel.io/changelog/#v0.10.0Thu, 14 May 2026 00:00:00 GMT<h3>Added</h3><ul><li>Animation mode with a full timeline for creating, editing, previewing, and saving LVGL widget animations</li><li>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</li><li>Workspace activity console for watching widget, font, event, and export activity while building embedded LVGL GUI projects</li><li>Bundled font picker with curated fonts, live previews, font weights, multi-size presets, and guided controls for non-Latin and Asian-language text</li><li>New Animation, Fonts, and Events example templates for LVGL GUI builder projects, with refreshed dashboard thumbnails</li></ul><h3>Changed</h3><ul><li>Build, Design, and Animation modes are now separated more clearly in the LVGL GUI editor, so animation work stays out of normal design editing</li><li>The sidebar now has always-visible Layer controls, rotation and pivot controls, and inline Label text styling for faster LVGL GUI editor workflows</li><li>Font creation now supports many more languages and writing systems, including Arabic, Hebrew, Thai, Greek, Cyrillic, Devanagari, Bengali, Vietnamese, Chinese, Japanese, and Korean</li><li>Font uploads now give clearer help when a file cannot be converted and handle larger multilingual fonts more reliably</li><li>LVGL C exports now better match the GUI editor preview for animations, image fitting, event actions, custom font symbols, and right-to-left text</li><li>Events now preserve more interaction settings across preview, import, and export, including property changes and animation playback actions</li><li>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</li></ul><h3>Fixed</h3><ul><li>Animation previews no longer leak animated positions, sizes, or opacity back into design mode</li><li>Rotated and animated widgets now keep selection outlines, handles, measurements, and canvas rendering aligned</li><li>Widget movement and resizing now snap more accurately to the pixel grid, reducing small visual offsets after edits</li><li>LVGL viewer previews now restart more cleanly so events and animations can replay without stale screen state</li><li>Imported images, portable PicoPixel templates, bundled fonts, and newly created fonts now relink and apply more reliably</li><li>Label Fill/Text controls and default design-mode text color were restored where they had gone missing</li></ul>https://picopixel.io/changelog/#v0.9.0https://picopixel.io/changelog/#v0.9.0Sun, 26 Apr 2026 00:00:00 GMT<h3>Added</h3><ul><li>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</li><li>LVGL events now support calling named functions directly in the simulator</li><li>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</li></ul><h3>Changed</h3><ul><li>Project Settings modal redesigned with LVGL export controls, share actions, and a usage sidebar</li><li>Export button restyled and renamed to "Export LVGL UI"</li><li>Default dashboard tab is now Drafts instead of Projects</li><li>Image asset previews show a checkerboard background for transparent PNGs</li><li>Screen resolution changes now instantly re-render the LVGL GUI editor canvas without a page refresh</li><li>LVGL export ZIP renamed to <code>picopixel_lvgl_ui.zip</code> to avoid confusion with other tools</li></ul><h3>Removed</h3><ul><li>Legacy design sidebar panels for non-LVGL shapes — right panel now shows only layer controls and dimensions</li></ul><h3>Fixed</h3><ul><li>Background images on LVGL panels, containers, and buttons now export and render correctly</li><li>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</li><li>Click and input events now work on all LVGL widget types, not just buttons</li><li>Image assets from shared libraries now clone into the current file, preventing broken references</li><li>Asset library images display correctly in the sidebar after importing a <code>.picopixel</code> file</li><li>Custom fonts apply immediately in the LVGL GUI editor without needing to click away and back</li></ul>https://picopixel.io/changelog/#v0.8.2https://picopixel.io/changelog/#v0.8.2Wed, 25 Mar 2026 00:00:00 GMT<h3>Fixed</h3><ul><li>Grouped LVGL widget assets now preserve group hierarchy during instantiation instead of flattening children</li><li>New LVGL widget name counter increments from current highest number rather than reusing last created index</li><li>LVGL widget assets no longer require a page refresh to render after memory allocation during init</li></ul><h3>Changed</h3><ul><li>Update the LVGL speedometer example template after grouping and font fixes</li></ul>https://picopixel.io/changelog/#v0.8.1https://picopixel.io/changelog/#v0.8.1Sun, 08 Mar 2026 00:00:00 GMT<h3>Fixed</h3><ul><li>Resolved an issue where LVGL widgets placed inside an LVGL GUI editor canvas group could sometimes be missing from the exported C code</li><li>The preview panel now correctly detects LVGL widgets nested within non-LVGL objects on the LVGL GUI editor canvas</li></ul>https://picopixel.io/changelog/#v0.8.0https://picopixel.io/changelog/#v0.8.0Wed, 25 Feb 2026 00:00:00 GMT<h3>Fixed</h3><ul><li>Custom LVGL font export now produces correct, standalone C source files — previously exported fonts could fail to compile or load at runtime</li><li>Font identifiers in generated LVGL code are now guaranteed to be valid C names, preventing build errors with certain font names</li><li>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</li></ul><h3>Changed</h3><ul><li>Improved security of the LVGL font conversion pipeline</li></ul>https://picopixel.io/changelog/#v0.7.0https://picopixel.io/changelog/#v0.7.0Mon, 16 Feb 2026 00:00:00 GMT<h3>Added</h3><ul><li>Cross-file copy/paste — LVGL widgets now carry their fonts and images when pasted between files</li><li>Image Fit/Crop mode — resize images proportionally or crop, with matching LVGL C code export</li><li>LVGL groups can now be freely moved within screen hierarchies</li><li>Library fonts are now available across all workspaces</li></ul><h3>Changed</h3><ul><li>New branded loading animation replaces the previous splash screen loader</li><li>Streamlined context menu with LVGL-relevant actions only</li><li>Improved performance for background tabs and large embedded UI project layouts</li><li>Removed legacy drawing tools (pen, path, curve) to keep the LVGL GUI editor focused</li></ul><h3>Fixed</h3><ul><li>LVGL widget drag and scaling no longer behaves erratically during group moves</li><li>Background color and opacity now clear correctly when toggling styles off</li><li>LVGL asset panel no longer shows duplicate ghost images</li></ul>https://picopixel.io/changelog/#v0.6.0https://picopixel.io/changelog/#v0.6.0Sat, 14 Feb 2026 00:00:00 GMT<h3>Added</h3><ul><li>PicoPixel is live — open beta launch for the visual LVGL GUI builder</li><li>Visual drag-and-drop LVGL GUI editor with full widget palette</li><li>Live LVGL simulator powered by WebAssembly</li><li>Production-ready C code export (LVGL 8.x) with no proprietary dependencies</li><li>Real-time collaborative editing with live cursors and annotations</li><li>Built-in version control with session history and rollback</li><li>Visual events editor for wiring widget interactions without code</li><li>Reusable LVGL assets library for widgets, images, fonts, and colors</li><li>Shareable simulator links for team and client reviews</li><li>Custom font management with automatic LVGL conversion</li></ul><h3>Known Issues</h3><ul><li>LVGL widget animations are not yet supported in the GUI editor or export</li><li>LVGL event editor flow needs additional testing — some edge cases may not export correctly</li><li>Minor UI quirks in the LVGL property panel under certain widget configurations</li><li>Performance may degrade on very large embedded UI projects with 50+ screens</li><li>This is an open beta — core workflows are stable, and we are actively shipping improvements</li></ul>