Please include as much of the following information as possible to help me fix the bug:

Brief Description of Bug

This is displayed at the bottom of my bags (on every character) with the 'Reagents' tooltip

Steps to Reproduce

Use latest version from WowUp, open bags

Loaded Addons

Too many, but no bag related addons AFAIK

Back Trace (LUA Error Output)

There isn't one

Cheers

Ahh, ok, cheers (maybe one to add to the docs/README.md)

Its an indicator of how much empty space there is in your reagents bag.