You can use a custom stylesheet (CSS) to do this. Just apply the styles
background-color: /*even color*/ !important;
background-color: /*odd color*/ !important;
with colors of your choice. (The class you need to use may vary — it was y0 for me and zA for the OP.)
(Here are instructions for custom ...
Following on from Andrew Lott's answer, I've found the following URL works really well:
Note that changing the dimensions at the end of the URL resizes the image - so the above returns a picture 1600px wide by 1200px high. Set it to your monitor's pixel width & height for best results.