Yeah. I experimented with different fonts in the past but most where just not for me. This one seems to be really good in both appearance (1/l/I/O/0) and functionality (ligatures). Thank you for the headsup!
EDIT: WOW it also supports Powerline (VIM)! And works besides Visual Studio Code (which I use where I don't use IDEA Tools) also pretty well in ITerm2 (v3.0.8).
I am using the Stylish Chrome-Extension to make tabs on Github appear with two spaces.
I just tried and added "Fira Code" as font for code blocks and that seems to work very nicely.
.blob-code,
.line-data {
-moz-tab-size: 2 !important;
-webkit-tab-size: 2 !important;
-o-tab-size: 2 !important;
tab-size: 2 !important;
}
.blob-code-inner {
font-family: "Fira Code" !important
}