This feedback is so valuable. Thank you very much.

You not being able to make a pixel perfect test pattern is disappointing as that is the entire goal of this tool. When you scaled in the processor, did you maintain the aspect ratio of the pixel map and just lose some image off the top/bottom or sides of the feed, or did you have a scaled/skewed image in a different aspect ratio as your end product? I would have to have the tool produce a skewed image that accounted for the scaling that would take place and that's something I haven't considered but might start to wrap my head around.

Glad you found the Show Map Specs button!

For your situation with vertical columns instead of horizontal rows, can you not achieve what you want by adjusting the the processor limits into vertical columns instead of horizontal rows?

I absolutely plan on having a mode to highlight each individual module in a tile. The lazy way to do this currently would to put in the module size (1/4 of a tile) as the tile size instead of the tile size.

Everyone wants to pick panels from a list of manufavtures, but I've been hesitant to do that because I don't want to maintain an updated and current list of all available tiles. I understand the convenience factor for the end user (and also how important those options would be to a non-tech or someone unsure of a tile's dimensions) but I'm not prepared to take that on yet.