RW7 - Needs WHITE downward arrow for sub-pages please!

Since the background of the side panel is now black, you cannot see if a page has dropdown sub pages or not. The arrow is black also. Please, please make it white so we can see it.

The arrow is grey on mine and is visible, but having said that, I HATE the white text on a black background. On non-Retina displays the text is indistinct and a pain to read.