Priority 1-3 with colour deposited

Technical assistance
4

I’m not 100% sure but i think that could be done with a custom css.

Have a look at this topic:

Edit: You’d probably want to change this to the color of your choice:

.item--low-priority a {
color: #8bcae9;
}

Further edit: if you want to stick to the “zammad colors” you could use the same green as it’s currently used for closed tickets: #38ad69

cheers