This will have a lot of new stuff and bugfixes. Probably lots of new bugs too.
Just finished up editing & rewriting for door definitions and "display settings" structure which sets up transparency settings, mosaic, and the map's background color. An example of screwing around with one:
(Map 128 with modified transparency type, mosaic on layer 2, and background color changed to blue)

(Running in ZSnes)

All that's left is to finish the re-write code for composite map stuff, which includes all the tileset/palette/etc settings, trigger/door definitions, and objects. This build might be a little short on object details until I start getting into sprite stuff, which I have planned next.