Change light green color to dark green to provide more contrast.

In Feedback, the text color in the Search area should be contrasted to the background color. Currently, text color is black vs. dark background makes it hard to see the text.

the yellow and light green fonts cannot be red in the sun. dark background would be helpful.

on the Overview screen, it is using a VV logo that is not very visible against the blue background of the page. May I suggest using the white VV logo found on the desktop application.