I want my image to have 60% transparency. How can I do this in gimp?
Just use the hotkey Ctrl+L or go to 'Windows → Dockable Dialogs → Layers'. This should open the layers panel with an opacity slider, that you can slide to change the transparency. (source)
protected by DᴀʀᴛʜVᴀᴅᴇʀ♦ Jul 13 '16 at 18:07
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