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Inconsolata - OSX, Productivity, Design, Typography, powerline, and Fonts
Bitstream Vera Sans Mono - Bitstream Vera Sans Mono Font | dafont.com
Ubuntu Mono - Ubuntu brand, app and web guidelines that help you create professional materials, software, sites, apps that build the Ubuntu brand.
Noto Mono - OSX, Typography, Fonts, Design, and powerline
Liberation Mono - Liberation Mono is a font family showing compatibility for metrics with Courier New, Times New Roman, and Arial.