Divergent Paths: The 3 Scenarios

The mini-map is a compressed graphic, so you'll need to use a utility called PeerSpriteViewer to decompress and export the graphic of the map, and then use yy-chr to edit it.
This here's a good tutorial on the process:
https://www.ff6hacking.com/wiki/doku.php...compressed
And PSV:
https://www.ff6hacking.com/wiki/doku.php...util:start

And the mini-maps offsets (Header):
2FE69B 2FEAB2 MAP World of Balance Miniature Map
408 compressed length

2FEAB3 2FEF25 MAP World of Ruin Miniature Map
473 compressed length

Be careful not to go past the original compressed length or it spill over into the next data and mess things up.