Light green checkmarks on published items?

  I've noticed recently that there are light green checkmarks next to some published items in modules rather than the usual standard green. Any idea what the difference is?  

Overlays in Speedgrader visually blocking student work

I've been frustrated with these overlays in the Speedgrader that sit overtop student text submissions and block their work so I have to either use context clues or keep resizing my window to move the...