Best Window Resizer App

Positive:
I’m using this app for two years now and it’s the best and most helpfull app available for resizing/arranging windows on a Mac. I’m using Apple Preview (for reading PDFs) und Texpad or Word (for writing) side by side each day to summarize my lecture-slides for university and with this app I can arrange multiple scenarios like 1/3 for the PDF on the left and 2/3 for the writing app on the right.

In need of improvement:
* Options > Background > „Set to Current Wallpaper“ doesn’t work for me under OS X 10.9.2. Actually it never worked.
* Layout Icons: Would be nice to get a design overhaul, e.g. transparent/glass effect icons like the iOS7 Control Center (without drop shadows). Then „Set to Current Wallpaper“ would be obsolete, too, because the background of the Layout Icons would blurry show what is underneath. I would love that.

robertternes about Window Tidy, v1.31