Pop up help issue???

[Mark Miller]

When I roll my mouse over specific buttons, I get a pop up that I am 
assuming is a help bubble. Problem is the colors used for this help 
bubble are so close that it is not readable. Is there any away to change 
these colors or just switch this pop up off. I have been through manual 
and can not find anything. Any help would be greatly appreciated...

I am running digiKam running under Linux Mint 18.2