 Citing comedy's "big duos" including Wallace and Gromit and Jay and Silent Bob, the creators chose to give Phineas most of the dialogue while Ferb remains almost silent.All characters in "Phineas and Ferb" were drawn in a design borrowed from Tex Avery's style, with geometric shapes being included in their structure; Phineas in particular is that of a triangle.The triangle face has been stated in the series as being just his nose that covers the entire head.