font patcher: https://github.com/ryanoasis/nerd-fonts#font-patcher
- install
fontforge
(arch package) - download font-patcher from latest release
- patch
./font-patcher --progressbars --careful --makegroups 4 --mdi path/to/fontToPatch.ttf
- rename font using FontForge
Element → Font Info → PS Names, TTF Names
File → Generate Fonts