How do I make buttons/icons more legible?

First of all, thanks for a great product and a very very good responsive theme. My users really love the new theme. However, they have complained that some of the buttons/icons are not very legible. I can’t find where in the color picker I can affect the display of these particular buttons/icons (see image below). How best can I address this?


You cant actually change the icon colour with the colour picker, you would have to change the colour of the icon images themselves. Look in the themes images folder.