incremental vs absolute line length activation

The bistable switch selecting  the relative vs absolute lengthen mode is hidden under
such a narrow white/blue rectangle that I discovered its existence after two months of LC use only.
 Would it be possible to make it visible to the naked eye and easier to cllck ?

It wasn't a problem when I checked on openSUSE.
On OS X I could see it.
It's fixed now.

As they say: The Devil is in the Details
Thanks :)