What's Changed

• New File > Export/Import submenus (a work-in-progress of #1252):
  • Added "Area" element to File > Export > Export... to export the selection only #645
  • Added File > Export > Export Tileset menu option to export tilesets #3240
  • Added "Sprite Grid" option to File > Export > Export Sprite Sheet so we can export each grid cell as an individual sprite in the sprite sheet #1982
• CLI options:
  • New --extrude CLI option #2072
  • Added --split-grid and --export-tileset
• Fixed bug where after using Ctrl+Alt+I the brush size changed just moving the mouse #3445
• Fixed original Ctrl+Alt+mouse movement behavior increasing Brush Size when moving the mouse to the right #3496
• Fixed possibility to dock/drop tabs to sides/tabs #3453
• Fixed eyedropper quick tool when preview window is visible #3236
• Fixed behavior of "Change Tool" action when it's assigned to modifier + mouse wheel #3459
• Fixed a random crashes using multiple windows UI #3491 #2907
• Fixed ability to use Ctrl+Alt to copy selection and snap-to-grid at the same time #3497
• Lua API changes

Full Changelog: https://github.com/aseprite/aseprite/compare/v1.3-beta20...v1.3-beta21 Discuss: https://community.aseprite.org/t/aseprite-v1-2-40-and-v1-3-beta21/15614