[cairo] Question about CAIRO_OPERATOR_SOURCE if paint operation doesn't cover whole target surface

[Boris Zbarsky]

Carl Worth wrote:
> 	cairo_set_operator (cr, CAIRO_OPERATOR_CLEAR);
> 	cairo_paint (cr);

So this sets the destination surface to be uniformly rgba(0, 0, 0, 0)?

Thanks for the clarification,

-Boris