Material science: The Effort post II

[Sundance]

There's still a bunch of weird things with parts of the station not having a material type set. Cutting grills and rwalls will give you a null material rod, and when you lift up a floor tile (which is steel by default) and plant it back down, you've instantly darkened the area. While that's great for making a repaired area look obviously distinct, maybe steel's colour should be lightened to the default wall/floor/material colour, and everything that's already "made" of it should have that material flag set?

I'm not entirely sure why mauxite was moved to steel. Looking into it, it seems mauxite and steel are two complete separate entities (as when you load them up into a general manufacturer, mauxite and steel are seperate) but to produce metal sheets, it'll default to steel. So everything on the station is mauxite, and you can only make steel due to some weird coding.
Not only are the items of a darker color, but as you said light behaves oddly around it, as if it "blocks" light. Then after a while, the light will "turn on" on the tile, but only to about 80% or so. It's odd, and it bugs me too.