[sstair]

Zone is exp01_rgn_sinking_sands.iop

Floor is light brown dirt

I've enclosed the plain SVG, and a colored SVG to show which parts are water.

I've also attached the modified "mapper.pl". Your instructions in the tutorial say to "/emote start new map line", but if you do, you don't see "You start new map line", instead you see "<name> start new map line" (where <name> is the character's name).