MacOS – Keyboard adjustment keys have black box around them

keyboardmacbook promacos

I recently did a fresh reformat and install of Yosemite on my macbook pro, it was working as expected until today when i noticed that whenever i use the top keyboard row keys to change something like screen brightness, volume, backlight level, there is a black box around the rounded box that normally pops up. Is this a common problem with yosemite and is there a fix?

Here is a screen shot of it

Best Answer

This effect occurs when "Reduce Transparency" is enabled (System Preferences > Accessibility).

(Very odd that this is how the effect would degrade, instead of just make it a solid colored square.)

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