I have a problem when installing new fonts on Font book. I'm want to use this font: https://github.com/sunaku/tamzen-font, following the doc I download the zip, extract it and drag & drop all of the content of the /ttf folder into the app Font Book.

The problem is that of all the different font sizes available in the /ttf folder, when I try to select on of the new font, apps (like iTerm) recognise only one: TamzenForPowerline

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In Font book all the different variants of the font are marked as duplicated, even though they are not (as you can see from the image the fonts are different):

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Now, how can I tell Font book that those font are actually different?

  • It may be that the font is not constructed in a way that MacOS likes. Individual files for different sizes is a bit odd. – benwiggy Apr 30 at 17:07

this is based on bitmap fonts (OTB) which in the past where optimised for a certain font size. This is not a font family. Therefore the Font ID - which is used by Fontbook to identify fonts - of each of them is the same. You could use e.g. FontForge to change the ID, but for a variety of reasons I wouldn’t recommend that. Why not use a vectorbased, monospaced font? There are lots available for free including bitmap-like looking ones e.g. here, here or here.

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