You can do much more with paint.net than with Paint. You can add layers, adjust colors or remove certain areas of the image with the eraser tool to make the PNG transparent. In GIMP, click on “Layer” ...
By January 1, 2025: email your logo submission (s) to [email protected]. You may submit as many logos as you like. January 6 -- 20, 2024: FSF associate members vote for their favorite logo (s).