question: protected void paintMatchedBracket ( Graphics g ) { RSyntaxTextArea rsta = ( RSyntaxTextArea ) textArea ; if ( rsta . isBracketMatchingEnabled ( ) ) { Rectangle match = rsta . match ; if ( match != null ) { if ( rsta . getAnimateBracketMatching ( ) ) { g . setColor ( rsta . getMatchedBracketBGColor ( ) ) ; g . fillRoundRect ( match . x , match . y , match . width , match . height - 1 , 5 , 5 ) ; g . setColor ( rsta . getMatchedBracketBorderColor ( ) ) ; g . drawRoundRect ( match . x , match . y , match . width , match . height - 1 , 5 , 5 ) ; } else { g . setColor ( rsta . getMatchedBracketBGColor ( ) ) ; g . fillRect ( match . x , match . y , match . width , match . height - 1 ) ; g . setColor ( rsta . getMatchedBracketBorderColor ( ) ) ; g . drawRect ( match . x , match . y , match . width , match . height - 1 ) ; } } } }
target:  Paints the "matched bracket", if any.