question: public void defineFillStyle ( Color [ ] colors , int [ ] ratios , Transform matrix , boolean radial ) { GradientFill fill = new GradientFill ( colors , ratios , matrix , radial ) ; elements . add ( fill ) ; for ( int i = 0 ; i < colors . length ; i ++ ) { if ( colors [ i ] == null ) { continue ; } if ( colors [ i ] instanceof AlphaColor ) { hasAlpha = true ; } } }
target:  Define a gradient fill