When I try to save with a transparent it tells me to save with a color. Which transparency was one of the best things I thought krita had. Reproducible: Always Steps to Reproduce: 1. Try to save with transparency. Actual Results: it saves with a background. Expected Results: saved with transparancy
Which file format are you using? If it's jpg, no, you cannot save with a transparent background, jpg doesn't support that. If it's png, you need to check the alpha checkbox.