Do you like the duotone gradient image effect on Spotify? Now you can get that same effect on your web pages using this snippet designed by Melissa Em. There are two variations to choose from and the original image is revealed on hover.
If you are having trouble with the pen, try the archived copy on GitHub
Duotone Image Effect Snippet
See the Pen Spotify(ish) Duotone Effect (two versions) by Melissa Em (@meowwwls) on CodePen.0