The pattern fill colors of rectangles and circles (including ellipses) cannot be displayed properly, but as long as the shape is not a rectangle or a circle, the fill color can be displayed normally. Writing in the following way can temporarily fix this issue: path.removeAllPoints() path.move(to: rect.standardized.origin) path.addLine(to: CGPoint(x: rect.maxX, y: rect.minY)) path.addLine(to: CGPoint(x: rect.maxX, y: rect.maxY)) // TODO: The purpose of -0.001 is to prevent the path from becoming a rectangle. if #available(iOS 26.0, *) { path.addLine(to: CGPoint(x: rect.minX, y: rect.maxY - 0.001)) } else { path.addLine(to: CGPoint(x: rect.minX, y: rect.maxY)) } path.close() layer.path = path.cgPath