How to generate color from url as mentioned in settings menu

[EpicBootyFire]

Under: Settings > Tabs > Tabs colorization > Colorize branches, its giving the option of generating color from URL. I'm not very good with CSS but I've been looking around since yesterday with no luck. Anyone have any idea how to do this?

If not, is it possible to generate color for tabs from a list of URLs and assigned hex codes?

[mbnuqw]

Color is generated and set to --tab-color css var in .color-layer with abovementioned setting is enabled. There is no other method of generating (mapping) colors by URL.