Hello! Just uploaded a small update. Now, "UNDO / REDO" works with all operations concerning image change in the "O" tab . "UNDO / REDO" In channels tab for functions "PASTE IMAGE", "PASTE CHANNEL" , "CLEAR ALPHA" and "SET ALPHA" works too. If any error is found, let me know here - https://steamcommunity.com/app/703300/discussions/1/ ːsteamhappyː The cost of the application will be increased to $ 19.99 on April 17