The "a" in "aci" refers to a trademark which we want to avoid mentioning in code. These values are indices into a color table (plus two special values for BYBLOCK and BYLAYER) so using the term colorIndex seems more readable.
The "a" in "aci" refers to a trademark which we want to avoid mentioning in code. These values are indices into a color table (plus two special values for BYBLOCK and BYLAYER) so using the term colorIndex seems more readable.