private void DrawBorder(RenderContext context)
{
var gradient = new GradientBuilder().AddCssGradient("linear-gradient(43deg, #4158D0 0%, #C850C0 46%, #FFCC70 100%)").Build().First();
gradient.InstantiateShader(_control);
gradient.Measure(context.RenderRect.Width, context.RenderRect.Height);
using var paint = new SKPaint
{
StrokeWidth = 10,
Style = SKPaintStyle.Stroke,
Color = SKColors.Yellow,
Shader = gradient.Shader.Create(context)
};
context.Canvas.DrawRect(context.RenderRect, paint);
}