pub const DARK_OFFSET_RAW: u32 = 0;Expand description
Raw count at zero illuminance, subtracted before scaling.
Measured: full darkness reads 0.2 counts, so there is nothing to subtract. Left at zero rather than rounded to 1 so the bottom of the range is not clipped; a covered sensor reports about 4 mlux, which is an honest noise floor and far below anything meaningful.