How do I fix this spritefont set color issue

Whenever i use the effect set color on my spritefont lines appear around the edges of the sprite fonts box.

Does anyone know how i would be able to fix this issue?

Thanks in advance

https://www.scirra.com/tutorials/629/sp ... ge-4#h2a15

basically it has to do with resizing..and your font is not leaving any space for the resizing blurring effect..

EDIT: oh sorry I read your post wrong... blew past the part about set effect.. although I suspect it's something similar..