Noun
a box containing a collection of cubes or tubes of artists' paint
Source: WordNetThe painter... does not fit the paints to the world. He most certainly does not fit the world to himself. He fits himself to the paint. The self is the servant who bears the paintbox and its inherited contents. Annie Dillard
But boy, right away it is fun to play around with the Paintbox program. Red Grooms
And now an altogether revolutionary discovery: to adapt oneself to the contents of the paintbox is more important than [to] nature and its study. I must some day be able to improvise freely on the chromatic keyboard of the rows of watercolor cup. Paul Klee