When using Kruller on FullHD screen, half of the ruller has overlapping number. Four digits are too much and this problem will get worse soon :)

Reproducible: Always

Steps to Reproduce:
1. Get some screen with a lot of pixels.
2. Use kruller. 

Actual Results:  
Numbers are overlapping and hard to read.

Expected Results:  
Numbers are readable.

I see two ways to solve this.

1. Hide minor numbers (x20, x40, x60, x80).
2. Rotate all numbers 90 degree counter clock wise.