v0.10.20

• New in-game panel button: Rewind your previous skill assignment. You can then click air to erase the assignment, or unpause to let it replay. If there are no earlier skill assignments, the level restarts from the beginning. This button has no default hotkey; you can assign one in the user options.

• Rename the options tab "Replay" to "Game Controls". Moved the splat ruler, tooltip, builder queuing, and batter priority options into this tab.

• Eye of the Needle (lemforum Hopeless): Fix my backroute. Now, the exit platform is thin, you can't mine and then platform to turn there. Eye of the Needle is also shorter horizontally.

• Fix #479: Fix a crash in the editor. The crash required five ingredients: You had to run a debugging version of Lix, the map was cylindrical or toroidal, you had many tiles on both sides of the the torus seam, you grouped the tiles, and you used the editor's undo feature to undo the grouping across the seam.

• Fix #481: In the main menu, print the version of the Allegro DLLs detected at runtime.

• Change the tree structure of internal images: Now each scalable image has a directory, which contains the different scalings (1.png, 1.5.png, 2.png, ...) of that image.