Round Rock River, has many personalition features for you, the reader. Below is a key of what all the icons mean and which aspects of the layout they change.
Use rendered Trade Gothic type face (default)
Use fonts available on your system
Set font size to medium (default)
Set font size to large
Set font size to x-large
Set layout to "Jello" (min-width:770px \ max-width:1200px) (default)
Set layout to "Fluid" (width: 100%)
Set layout to "Fixed" (width: 760px)
Place navigation on the right of the screen (default)
Use rendered Trade Gothic type face (default)
Use fonts available on your system
Set font size to medium (default)
Set font size to large
Set font size to x-large
Set layout to "Jello" (min-width:770px \ max-width:1200px) (default) 
Set layout to "Fluid" (width: 100%)
Set layout to "Fixed" (width: 760px)
Place navigation on the right of the screen (default)
Place navigation on the left of the screen