If anyone's looking for a bitmap/pixel font that covers many symbols, including all necessary powerline symbols and a large portion of the various nerd font symbols, I can't recommend Cozette[0] enough. Recently the author has began updating and releasing new versions after a hiatus. Also, if you use the otf version of the font instead of the bitmap/otb version you can still get it to look like a pixel perfect bitmap font by setting the font to a specific size in the application, usually size 9 or 9.5 depending on the app or terminal.