Change BG color based on certain values

Basically I have a list of employees and I wish to color their cells a different colour if they're on "Student leave"

The names are going from A12 down to A34 - I don't wish for those BG's to change.
The BG colors I wish to change are the cells right to the right of them, for example the first name in "A12" if on student leave then I wish for cells B12 to O12 to be colored a different color

However since a lot of my employees come in and work on occasion when on student leave, I wish for there to be a space, perhaps on a different sheet where I input the names of the people who are on student leave, which will automatically change their cells to a different colour, and then once removed from said list, their cells would change back to a default color.

Any help would be fantastic, thanks!

mae55f.png