// https://html.spec.whatwg.org/multipage/canvas.html#canvasfillstrokestyles
interface mixin CanvasFillStrokeStyles {
    attribute (DOMString or CanvasGradient or CanvasPattern) strokeStyle;
    attribute (DOMString or CanvasGradient or CanvasPattern) fillStyle;
    CanvasGradient createLinearGradient(double x0, double y0, double x1, double y1);
    CanvasGradient createRadialGradient(double x0, double y0, double r0, double x1, double y1, double r1);
    CanvasGradient createConicGradient(double startAngle, double x, double y);
    CanvasPattern? createPattern(CanvasImageSource image, [LegacyNullToEmptyString] DOMString repetition);
};
