But there lies the problem too. The speed increases as you scroll and soon you'll be going warp speed! There should be some speed limit in the animation.
This has been fixed already. If you look at the MeeCast thread, the dev there has patched a system package (inception is needed to install) that fixes the black square on weather.
Do I need to reboot to activate horizon or images? Because those two doesn't activate immediately like others background features. I'm using 1.5.2