Match Parenthesis: When checked, parenthesis matching is enabled.
Match Square Brackets: When checked, square bracket ( "[" and "]" ) matching is enabled.
Foreground: Selects the color to display the parenthesis or bracket character.
Background: Selects the color to display as the background to the parenthesis or bracket character.
Bold Characters: When selected, the parenthesis or bracket characters will be shown as bold when matched.
See also: Parenthesis Matching