For so many things a vector based image / icon is way better than a pixel based one. Yes, jpeg for actual pictures of stuff, but icons and so on want to be drawn not imaged.
So a simple example, FireBrick config pages, as they have always been, using road signs... I am used to them. But on my 5k mac I did not realise they are maybe "blurry"...
Maybe I need to blow that up a bit - screens shots on my Mac... Still these are bitmap screen shots.
Impressively different, but the latter can be blown up indefinitely as it is vector graphics...
So really all icons need to be SVG, it is cool, and it just works.
P.S. here is what happens when CQM graphs are done as SVG!
P.P.S. I have actually spent two whole days on this, annoyingly - largely because it is a bugger to test, and even testing locally you then want to test on hundreds of different graphs for several hours, any which point you find something is like half a pixel out when you zoom in - arg, bring back pixels, all is forgiven. Anyway, several firebrick alpha releases today. Looking damn good, and yes, we will be rolling this awesomeness out to A&A customers over the coming weeks.