Contemporary painter was not accepted
An artist may be a painter, an actor, a sculptor etc. It's much more general.
Thanks D. I accept your point but in practise it rarely applies to an actor or a sculptor. A painter can be a house painter.
... tries out a different color.
I'll add it, but I think it mostly means *"to test out before buying" in this case.
Could προσπαθεί be used?
No, προσπαθώ only means to make an attempt (try to do something) rather than to test something. It is followed by the subjunctive, not a object noun.