SetFillColor
Sets annotation fill color.
Inherited from ApiBaseAnnotation.SetFillColor.
Example
Set the background color of an annotation in a PDF.
// Apply a fill color to make an annotation stand out in a PDF.
// Change the interior color of an annotation in a PDF.
let doc = Api.GetDocument();
let squareAnnot = Api.CreateSquareAnnot([10, 10, 160, 32]);
let page = doc.GetPage(0);
page.AddObject(squareAnnot);
squareAnnot.SetFillColor(Api.RGB(255, 0, 0));