https://ttjontt.wixsite.com/gamehut
https://github.com/TheStormkeeper/GameHut-Files
Sweet! Thanks to the Soul Star X (32X) sourcecode fragment, I figured out how to have the art and other data as external files. This makes art mods so much simpler. It reduces the code as well.
zone_03_dat incbin stages\zone03.dat
even (This doesn't seem to be required.)
There is also a PWM Sample Program sourcecode snippet.
Original sourcecode for GameHut4: 46.5 KB
Sourceode with split data: 38.8 KB