Available Modifications
Listed below are modifications that advanced users may chose to impliment into the rendering of overviewer. These mods may include additional information overlays into the output, the style in which tiles are rendered, or additional actions that are performed by overviewer on each run. These typically require the administrator to have a little more knowledge of programming languages... as a note to developers of these mods, please feel free to update this list with links to your own scripts and mods.
Minecraft Sundial https://github.com/sunkid/minecraft-sundial/ - Will show your ingame server time as an overlay onto the Overviewer Map.