I am getting a little frustrated with the newest version of Gimp because it is doing something that the older version has never done in regards to a transparent background.
In the old Gimp, when I copy and paste a layer with transparency (like a custom sprite sheet) to a image program that doesn't allow transparency by default like Paint or Sketchbook Pro, the background is a solid black color. There are easy solutions to this, and all are definately easier and quicker than what I have to do with the new Gimp.
Transparent pixels in the new Gimp now don't take one uniform color; instead, it takes what ever color it had before becoming transparent. This doesn't seem like a problem to programs like Gimp and Krita because they keep the alpha channels of the pasted layers; but, for sprite and other image editing programs that don't support alpha channels, whenever you paste a Gimp sprite layer onto these programs, instead of a uniform black or single-color background, you will get a flat image of both overlapping new and old work done to the pasted layer thus always leaving a messy image.
Is there somewhere in the Gimp settings that prevents transparent pixels from taking colors from the opaque pixels before it, and instead, have all transparent pixels keep to a single uniform color?
Thanks for answering, everybody; but, how do you turn off this "non-destructive" erasing or "pixel data" option? I find it more of a hindrance than a benefit because I often use undo for erasing mistakes.
Kerr, though I haven't tested it yet, your solution seems to be the best for changing all transparent pixels back to one color. But, that is only a quick fix to a problem that will come back so long as that nuisance of a feature remains active.
I'm getting closer and closer to finding the solution, I just need that OFF switch!