I cant get ligatures working

[nilsi]

I installed the latest icons:

curl -L https://github.com/kvndrsslr/sketchybar-app-font/releases/download/v2.0.5/sketchybar-app-font.ttf -o $HOME/Library/Fonts/sketchybar-app-font.ttf

I use kitty as a terminal.

Now to the problem: I can't add any new icons from the font book. I tried writing for example :slack: but it does not render the icon or show up in the bar. I also tried copying from the font book without a result.

I don't understand why this is not working since the icons are in the font book and the terminal supports ligatures. Any ideas would be appreciated.

[kvndrsslr]

The font has been tested in the context of sketchybar. While it should indeed work anywhere with ligature support it arguably abuses the concept of ligatures. A quick search in kitty surfaced this issue which explains it:
kovidgoyal/kitty#7142

So without looking into the code, one of the following happens:

1. kitty renders the symbol but only at (100/ligature.length)% - barely visible
2. due to the implications of kittys behavior the developer implemented a max viable ligature length and any ligatures over that length just won't be considered for rendering