OK. The glow text example I gave that's currently inside the code (but unused) isn't great.

I've received feedback from @MilesMSCohen that it has a fundamental flaw:

• It loses all font hinting which makes it hard to read, especially at small sizes.

Ouch. I want hinting. The recommended alternative is to render the text to a command list and use the command list as input to an effect that can cause a glow.

@DHowett-MSFT already had a sample lump of code to do something like this that he was playing around with a few weeks ago because glow text is cool. It's around here somewhere.

Also, I got the warning from @MilesMSCohen that this might have worse performance, but we'd have to decide if that's worth it.