change font colour of certain items in lookup list.

change font colour of certain items in lookup list.

Is it possible to change the colour of the font of certain items in a lookup list? I have  form that allocates tickets.
Once a school has recieved tickets, a field called 'Received tickets' in another form(Add/Edit schools) has its value changed to yes.
When I load the Allocate tickets form, there's a lookup field that lists school names. What I am trying to do is that for those schools who have a yes value in the field 'Received tickets' within this lookup list their font colour would be red. Can anyone help?