It's because you save your image as a .png, so the background is transparent. If you want to keep your background color you have to save in .jpg format.
thanks, 4 the tip... hey, i created my 1st fractal drawing... its a very simple one but i created it myself... i'm new to this so i'd be veeeerrryyyyy happy if you would guide me a little...
If you want to keep your background color you have to save in .jpg format.