[View] -> [Options] -> [TOAD Options] -> [Data Grids] -> [Visual] -> [Highlighting] -> [Fonts] -> [Grid..] -> [Data Grids] -> [Visual] -> [Highlighting] -> [Fonts] -> [Header..]
[View] -> [Options] -> [TOAD Options] -> 하단 [Editor Options] -> [Highlighting] -> [Editor font]