Absolutely yes.
First I disliked all geo-features, so I got rid of them all... no parks, cemeteries, lakes, etc. Lately though I changed my mind. I realized why I disliked them all. To me all the colors just stood out too much, so I made them a bit lighter for example I changed parks to RGB value of 150,252,150. Everyone has their own preferences ;-)
Click >
here < and from the menu select "Hide geo-features". Hmm, perhaps the name could be changed to "Customize colors of geo-features" ;-)