[Map✓] Pink Border indoors

Hey everyone,

I started making my own fangame using the Decomp and pokemon emerald. Everything is working fine so far, I can figure most stuff out plus the tutorials are very helpful.

I do have one issue I can't get behind. So, I have given my indoors maps a black border:


But in the game, the border is pink:


Can anyone point me in the right direction here?

Best,
Teraku

Use the black metatile on the right of the one you have selected in the first screenshot.

That worked! I almost imagined it to be something like that. THANK YOU!