Hi guys n girls

Ive just got PSPP X2, i'm a total dummy though !

I have found a symbol of the unofficial Spanish symbol "the black bull". I'd like to flood fill the bull red and the background black. When i fill the bull it looks ok but then i fill the background i get this horrible white, patchy line all round the outside of the bull and looks terrible.

I bet there's a real easy fix for this but I can't find one no matter how hard i try ! Anyone nice enough out there to help me out ?

Would really appreciate it

TY people.
Danny.