UI

Most things, as in resizing and responsiveness, are coming on. Responsiveness is done tbh, but I must admit I'm not happy with the presentation of tilesets: the co-ordinates go haywire on some actions and it's just not very good; I believe the user should have more control over how the tiles are presented. This includes scale/zoom and columns/rows.

On a related note, it would be good to check for duplicate tiles and not repeat them internally, instead of wasting memory with clone code. Originally I was just going to do this check when adding to VRAM but on further introspection it'd be best to do this on import.

I also found a new bug involving exporting to PNG. This will be fixed before I release a new build.

The UI is my priority. I'm not sure if the 90's adventure game chic I've got going on is the best approach anymore, hah. But, that is a problem I'll come to after all the functionality is in place.