The Color Palette plugin adds a simple Gutenberg block to the WordPress dashboard. It has a limited usage, as it just draws the colored boxed and indicates the Hex, RGB and CMYK values of the box colors.
Category: How to’s
Sometimes you need to customize the standard data attributes attached to an image added to the post or page content in WordPress. For example if you want to implement Lokesh Dhakar’s good old trusty Lightbox2 script you would need to have a new data attribute added to the a href around the image