Okay, first off, thanks Ben for continuing to ask questions about the walls.
I discovered that I have three sets of wall templates in my FRUA/Art folder (2 in the templates subfolder), and all three have different palette information.
The palette information I used for these walls, is quite wrong I think. I think this because it is telling me that I can change the same colors as I can for the backdrops...which doesn't seem correct to me.
So, I'm now going by a different set that says I can change colors 32 through 68. In hopes that this is right, I have redone the walls for 20 of the walls so far.
I also thought that since I was redoing the palettes, I might as well group the walls so that they can be used together as was likely designed in TSF.
So, in the attachments for this post are one set (per archive) of walls each, numbered for the slots they should go into in Toolbox. All 5 walls in the set use the same palette, of course.
If it doesn't work this time, I think I'm through with FRUA walls.
Hmmm, I bet my palettes for the Hut walls are wrong too....