Having designed an Painter character that uses Performance to help his Ritual spells.
After ages of trying to do this we found a nice simple solution, the character can use Performance to make declerations during the ritual phase to tag it for the ritual, flavour wise this can include mixing ingrediants into the paint etc....
Its a nice thematic work around driven of the characters High aspect, and easily usable as well by a Focused Practioner, The Character has the ability to work only effects that he can paint so Wards which can be painted onto any surface of the building or hung in a suitable venue, Summoning and binding (which works in a really cool way the Canvas is placed inside a ring of Copper Frame and then the summoned creature is bound to its 'image' as drawn by the character...), and Crafting (this includes special paints, not potions that allow certain effect, focus item paint brushes... you get the idea)
Any way I hope this helps with your idea it took a while to get the balance right with this character but now very very happy with it.....
Note the high concept is Picturamancer (Pictura is Latin for Painting)
and is actually hired by local supernatruals for his works of Art....
