Is it possible? I would love to add some pics to some of the backgrounds in POR and OOE. All my attempts so far have failed. Does anybody know if and how this can be done? I'd appreciate it if anyone could and would tell me.
Is it possible? Yes, but I don't recommend you to do that, each stage/area has a fixed number of pages (canvas of 128x128 pixels to put pixel art, like ground, walls, backgrounds, etc.) you can only place 16x16 tiles and each 16x tile can have 1 16-color palette (first color is blank), and just like pages, you have a fixed amount of color palettes, you can replace colors of current color palettes but it may (or not) break other graphics using said palette, so try to look for 1 page with free space and 1 unused/used less often palette.
I've imported first 3 screens of RoB to PoR and it was a success, also, I'm importing Final Stage to PoR and looks good but the collision is broken. Useful pics: