j-un

<!--
Parameters:
    type - (Required) album / track / playlist / artist
    id - (Required) Target ID
    width - (Optional) width
    height - (Optional) height
-->

{{ if .IsNamedParams }}
<iframe src="https://open.spotify.com/embed/{{ .Get "type" }}/{{ .Get "id" }}"

RomanEsin

// color - source color, which is must be replaced
// withColor - target color
// tolerance - value in range from 0 to 1
func replaceColor(color: UIColor, withColor: UIColor, image: UIImage, tolerance: CGFloat) -> UIImage {

    // This function expects to get source color(color which is supposed to be replaced)
    // and target color in RGBA color space, hence we expect to get 4 color components: r, g, b, a
    assert(color.cgColor.numberOfComponents == 4 && withColor.cgColor.numberOfComponents == 4,
           "Must be RGBA colorspace")