Why Don't The Backgrounds Fit My Screen?

DeltaFlute writes, "I post my backgrounds using the script you write, but they look overblown. I'm using minima. I've tried to make adjustments but nothing looks right? Am I doing something wrong? Thanks."

Response,
My guess would be that it is something in your screen settings. Monitors (and their settings) may vary.

Also see the comments on this post for more help...