ADRHEXADRNAMEDescriptionshadowOS
78$004EDRKMSKDark attract masknoneAll

Set to 254/$FE for normal brightness when the attract mode is inactive (see location 77/$4D ATRACT). Set to 246/$F6 when the attract mode is active to guarantee screen color luminance will not exceed 50%. Initialized to 254/$FE.

See also:

ATRACT, COLRSH