>>2151676or you can use a program like GIMP, Photoshop, or really anything that lets you put things on separate layers
Heck, even Paint 3D let's you do the same thing as you described, set dimensions, color, then insert desired image, resize it, though it also changed the size of the whole canvas, which is not great, I would not actually recommend paint for this, but it's doable, pic is done with paint 3d
>>2151674this is a slow thread, last one lasted over a year, mainly due to people like me becoming far less active for various real life reasons, which sucks, but that's just the nature of such hobbyist activities