We see another pushing of 'the great programming font' from time to time. But rarely see innovations like special glyphs from multi-character tokens, +=, ++, /*. We see the same, boring, single rendering glyphs for parenthesis and brackets without regard to the depth level of parenthesis. You would think a more savvy font designer could do something eliding color and font rendering to produce a font the would help quickly understand code.

I find the idea interesting and would love to see more in this direction. It especially makes sense for languages with more obscure operators that are mimicking traditionally handwritten mathematical symbols.

That being said, I tried using FiraCode for a week and switched back. Some of the conventional common operators have become so ubiquitous and second nature to me that its difficult to adjust (especially the comparison operators). I'm still looking forward to more extended ligature fonts though.