Sets the color used inside shapes. r
, g
, b
are 0-255, a
is 0-1.
void setFillColorRgb(int r, int g, int b, [num a = 1]) { this.fillStyle = 'rgba($r, $g, $b, $a)'; }
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https://api.dart.dev/stable/2.5.0/dart-html/CanvasRenderingContext2D/setFillColorRgb.html