The power and effect of the glyphs are easily readable. They have the sign rune on them and the dots indicating their power. For runestones it's not so easy with lesser and normal runestones looking the same. I've enhanced the icons a bit adding small effect icons and their power indicator as small engraving at their edges.

Installation:
Move in to your mods folder.  Not compatible with any mod that edits the same thing. 

Uninstall:
Delete "modIconsRunestones" in your mod folder.