Aseprite v1.3.17.1 & v1.3.18-beta2
2026-04-21Hi Asepriters! Today we're releasing a patch with several bug fixes, and a little new v1.3.18-beta2 with some changes about how layer groups are presented in the timeline: What's new in Aseprite v1.3.18-beta2 • Better presentation of Layer Groups in Timeline #5651 #5758 • Fixed hidden layers affect z-index #5681 • New -power-of-two-size CLI parameter to create sprite sheets with a power of two size #2289 • Fixed bug opening .aseprite-extension from Windows File Explorer #5744 • Fixed right-click on multi-line text editor (e.g. user data field) • Avoid confusing Eyedropper behavior when there is no Reference Layer available #5685 • Lua API: • New plugin API to add custom file formats when loading/saving sprites #4950 #5174 • Improved Dialog labels and buddy enabled handling #5117 #5554 • Added support for eyedropper tool in app.useTool() What's new in Aseprite v1.3.17.1
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• Fixed Edit > Insert Text which doesn't paste text on viewport's center #5615 • Allow installing extensions by dropping them into the preferences dialog #5697 • Fixed tips for thin filled ellipses (thanks to @emmachase) • Fixed underscore and strike-sthrough not shifted with layer's name #5736 (thanks to @sliva0) • Fixed color picker selecting below alpha bar #2006 (thanks to @luke-henry-04) • Fixed selection tool performance in tilemap layers in 'Tiles' mode #5760 • Fixed crash when painting in an empty tilemap in manual mode #5717 • Fixed bug showing invalid zoom level in status bar #5545 (thanks to @Darth712) • Release mouse capture after switching to other app with Alt+Tab #325 #5601 #5691 • Fixed the Palette unlock icon (thanks to @thkwznk) • Added some missing translation strings for the Advanced Mode dialog #5704 • macOS: Inactive window doesn't pass events to window below #4561 #4835 • Linux: Don't change process name to "main" • .aseprite decoder/encoder: • Fixed crash decoding invalid external file types • Fixed stack overflow decoding multiple level of properties • Lua API: • Update API version to 40 • Fixed moving active cel to 0,0 when drawing for some specific scripts #5679 • Added Sprite.hasAssociatedFile property #5721