Hey!
Been a while since I've posted here. I've been playing with 3.0 alpha (really impressed with how stable it is). Godot 2.x had the import feature to create bitmaps from an image's alpha channel so they could be used as click maps on image texture buttons. I can't seem to find this functionality in Godot 3.0
I can create .pbm files in gimp, but the godot 2.x converter creates them with far less errors.