New:

Function	Parameters	Description	Returns
`v.getSectorColormap`	`sector sec, fixed x, fixed y, fixed z, [int lightlevel]`	Returns the sector `sec`'s colormap translation at the specified XYZ coordinates. `sec` can be `nil`, making the call equivalent to `v.getSectorColormap(R_PointInSubsector(x, y).sector, x, y, z)`. `lightlevel` is optional, and ranges from 0 to 255. If the sector has no colormap applied, this returns the `COLORMAP` file.	Translation (`colormap_t`)
`P_GetSectorLightLevelAt`	`sector sec, fixed x, fixed y, fixed z`	Returns the sector `sec`'s light level at the specified XYZ coordinates. `sec` can be `nil`, making the call equivalent to `P_GetSectorLightLevelAt(R_PointInSubsector(x, y).sector, x, y, z)`	number

Removed:

colormap from extracolormap_t.