Open GBAGE and, in the Image Control window, paste that offset where you inserted your battle frame tiles. Make sure "Compressed graphics" is checked, and set width to 15
and height to 68
. If the colors are messed up, open the Palette Control and paste offset 802558
in the offset box. Now open Tile Control and check "Use TSA", and paste offset 80201C
in the offset box there. You can now edit any TSA errors by clicking the tile and scrolling through the "Graphics" scroller in Tile Control until it's the correct graphic. Refer to the Wingrit screenshot below - the first red row and the first blue row are what will be loaded when 2 units are on-screen together (battle/healing), and the final blue row is loaded when 1 unit is on-screen (e.g. promotion). Remember to update the TSA for both. Make sure that any areas that are the background color in the screenshot (e.g. where the unit names and weapon names are placed) are also blank in your TSA edit. Save your rom once you've finished editing the TSA.