I have a dynamic background colour set for several of my columns on a grid.

It's getting a bit complicated...

One of my columns is for example:

ICASE(ICASE(EMPTY(wipdata.wup1),rgb(255,255,255),!EMPTY(wipdata.wup1) and wipdata.mat_type<>"Blend",RGB(0,255,0),!EMPTY(wipdata.wup1) and wipdata.mat_type="Blend",RGB(255,100,0),rgb(255,255,255))'

Is there another of doing this, in like a UDF for instance?

TIA