Color coding in HTML Schema Doc Generator output

Hello. I use the schema doc generator to create data dictionary-type output. I’d like to understand fully the color-coding of key column in the table details section. Columns are numbered with the numbers of key columns (primary, foreign and PFKs) color-coded red or blue. Blue seems to be reserved for composite primary key columns that are not FKs, and red for all other key columns - but that almost seems like too complex a definition. I’m sure it’s tied to some configurable parameter in TOAD - what is it?

Screenshot example attached.

thanks in advance.

html_schema_doc_colors.bmp

Red means that the column is the leading column of an index.
Blue means that the column is in an index, but not the leading column.