Cura 1.5 uniform scale button is hard to see

[4Crawler]

If I select Scale and click on the Uniform Scale button, it's very hard to tell uniform from non-uniform scaling. In uniform scaling, the outline of the button is full black, but in non-uniform, only a few pixels on the left side turn the background color so it's very hard to tell which mode Cura is in. Is there any way to make that more visible?