OK guys.. this is likely a very simple question for its driving me nuts... I have the following VERY simple texture exported as PNG from blender. here it is Now i'm using GMP and just want to colour in the boxes a single colour, problem is the seams when i colour in it looks like this: So you see the seams on the colour NOTgoing nice and clean to the edges. Plus i want the seams inside the large box to be removed... So i ask how are people getting this nice clean textures. Sorry is this is basic but only started learning a few days ago, using blender, unity and GIMP. BTW i have searched and these forums and google, lots of posts but not one that i can understand in plain idiot English....