This is a simple rune tracking mod heavily based on Rune Hero.
RunePack was originally created by Lane on WoW Interface, who has given me permission to take over maintenance.
When you use a rune it moves out to the left or right and fades then slowly moves back to the center when it is ready to use. The idea is to always have one place to check for your runes. If the box is empty dump some runic power.
You should have close to one GCD left before your rune is ready when it crosses the border of the box.