Add gradient option for backgrounds in “Highlight Settings"

I'd like to have the option to use gradients in the backgrounds of highlighted text. This way I could also split the background to be 50% colored and 50% transparent, to add that modern text highlight that a lot of websites use. For example .content-container mark.kt-highlight { background: linear-gradient(180deg,rgba(255,255,255,0) 60%,#32b698 60%); display: inline; color:inherit; }