Did various searches and couldn't find an answer.
Due to various IE / Firefox issues with how they handle images and set transparency values, we're standardizing on magenta (FF00FF) as the color since it's least likely to be used in an image.
Now I have two GIFs with transparent pixels in them. They appear as transparent in Paint.NET, Windows Preview, FF and IE. However, when I load one in Paint (not .NET, just regular old MS Paint), the transparent pixels appear black. When I load the other, the transparent pixels appear dark grey.
I could just change the transparent pixels to magenta either pixel by pixel or adding a new layer behind it. But before I do that, is there any way to tell Paint.NET to set the transparency value in a GIF to a specific color?
TIA.