Comment 19 for bug 650498

You're right - we have no idea what diktats we're going to comply with
over the next decade, or how they will impact on the fonts and various
scripts. So, while we should constantly strive to keep the metrics
stable, I have no doubt that we will be forced to make changes to them -
either to fix a major bug, or because of external forces. Given that at
the moment "no-one knows" what the capital sharp s should look like, I
think we have the liberty to solve the problem ourselves with something
elegant, clean, and clear.

However, the width constraint point still stands as we need to have a
monospace capital sharp s. I'm sure there's a good design solution there
somewhere though.

Dave