I have been using Illwinter's Floorplan Generator on Steam and the 1.21 release came out with roll20 dynamic lighting suppport. The creator is asking the community if there are other roll20 features he should consider. Might be a good opportunity for someone from smiteworks to reach out.

A major update with new features, terrains and icons. Different elevation levels will now change the brightness of the ground to make it easier to see the level difference. Users of Roll20 can now get walls to interact with the lightning automatically (file menu / quick export settings). In this update are also the performance improvements from the previous 1.20 version that was reverted due to a crash bug.

Changes

Elevation differences will change texture brightness
New mud, grass, cliff and moss terrains
New water terrains
Water terrains now have their own category
New icons: Logs, Arrow Slits
New giant mushroom icons
Loading of edges didn't always work properly when using mods
Top left square could be drawn when it should not be, fixed
Fix for crash when loading large dungeons
Roll20 dynamic lightning support