Originally posted by @danielbayley in #1095 (comment)

@Finii Suggesting Lucide icons, instead of Feather icons, as mentioned in #665. Lucide is a much better fork of Feather…

Ah, thanks for the hint.

Unfortunately they seem to be web- and single-icon-use-centric, as they do not keep codepoints constant.

I just opened up two versions 1/2 year apart or so, and in the new version they stuffed in more icons in between existing ones:

It is of course bad to change the codepoints, as terminal users address the icons solely by codepoints, and they rightfully expect their beautiful shell prompt to stay the same (icon wise) on updates. They seem to have not understood that codepoint stability is important for the font files. (It does not matter for usage via name, as typical web users do).

Of course we could - manually and laboriously - introduce some mechanism to add the codepoint guarantee, but with >1000 icons that would really be a maintenance burden.

🤔

And WHY do they add one arrow with filled head (green) and the other directions with open head (blue)?

😒

To make sure you understand what I mean (and because you seem to be involved with Lucide)

Assume we have a user that wants a fruit in the prompt. People tend to like their OS-icons in the prompt (for reasons that are beyond me, but that does not matter).

This person installs a Nerd Font, finds that the fruit has codepoint U+F12B and uses that icon in the prompt via `echo "\uf12b".
Then Nerd Fonts updates the Lucide Icons and releases new fonts and they will of course be automatically installed on that user's machine.
Unfortunately the Lucide people decided to put new icons between the fruit and the start (instead of appending the new icons to the end) - and when the update is installed and that poor Apple user is presented with a angry icon in the prompt instead :-o

This is nothing Nerd Font can/want to follow. I assume Lucida takes all currently available svgs and sorts them (alphabetically?) and dumps them in a file. After adding icon aaa_my_icon all the icon codepoints shift by one :-( Nerd Fonts would need to fix that, resort the icons to keep the same symbols on the same codepoints and shift all new icons to the back.

~~In fact we do this already for some icon sources; but they do not change as drastically as Lucide.~~

Maybe you want to bring that problem up at Lucide. For me ... those icon sets grew me grey hairs...

Addendum:

#365 (comment) says (see 'update codepoint stable' column):

For the octicons we re-establish codepoint stability with some scripts:

https://github.com/ryanoasis/nerd-fonts/tree/master/src/glyphs/octicons

analyze creates a mapping file with the initial codepoint-symbol association. Then on symbol font updates generate transmogrifies the symbol font to a new one with corrected codepoints, which can fail in various ways.

Include Lucide Icons #1389

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