Brilliant, Gary, so far what I've seen (tested on firefox).
Just one comment: I would stick to the "A+" and "A-", for changing font size, since the heads of the arrows are very difficult to see..., and many people is used to "A+" and "A-" type of sign.
On this #tikiexpresstutorial, using #tiki19 I’ll show you:
How to enable a feature from the Control Panels
How to enable a Global Feature from the features panel
How to enable an Interface feature
A quick overview of the Programmer features
And where to look for feature options
