Minor bug in [[Special:LanguageStats]]
If, just when the page Special:LanguageStats is loaded, the mouse pointer happens to be over one of the table rows, then the color of that row becomes inconsistent (very dark green, if normally would be light green) when you move the pointer away from it. Only when the pointer is moved back over the row, the color is consistent. Also, when this happens, the mouse pointer becomes a "vertical resize pointer" when you move it over the side menu (i.e. Toolbox). I'm using Firefox 12 in Windows. This is obviously not a priority issue. Just to let you know.
Thanks for the report. I've seen that too. I've discussed it with Niklas a long time ago. We think this is a browser specific CSS related rendering bug that appears in the scenario you describe.