config.toml setting for specifying fallback fonts

[comiluv]

Is your feature request related to a problem? Please describe.
Neovide previously enabled users to set up fallback fonts for CJK characters, emojis, etc. within the init.lua file under vim.o.guifont. This was achieved by specifying fallback fonts after the default fonts. For instance, an example setup would be vim.o.guifont = "consolas, Noto_Color_Emoji:h11", indicating a fallback to the Noto Color Emoji font for character sets not available in Consolas.
However, with the release of Neovide 0.12.1, users now have the ability to configure fonts and font features in the config.toml file. While this enhancement is a great addition to Neovide, it currently lacks the capability for users to establish fallback fonts to accommodate diverse requirements.

Describe the solution you'd like
Add an option to specify a fallback font in config.toml file

Describe alternatives you've considered
I think support for fallback fonts in config.toml would be best for symmetry

[TwIStOy]

You can also specify fallback fonts in config.toml. Like,

[font]
normal = [ "Symbols Nerd Font Mono", "FiraCode" ]

Sorry for the document of this feature is not clear.

[comiluv]

Thank you for your reply.
I tried setting up fallbacks using "Noto Emoji" from Google but have trouble getting it work properly.
I started with consolas as the default font and Neovide looks like below:

and if I add Noto Emoji to display emojis on Neovide with specific fonts,
Neovide screen looks like below: emoji is displayed in Noto Emoji's monochrome emoji as expected but alphanumerics aren't displayed in consolas

If I swap "Noto Emoji" and "consolas" position in config.toml like below, alphanumerics are displayed using consolas, but the emoji is displayed in some kind of Windows default, where monochrome emoji from Noto Emoji is expected.

[TwIStOy]

Ah, It's an issue about parsing these configurations. Please try #2244. It seems work now!

[BatmanAoD]

It seems that even in config.toml, fallback is "noisy" as described in this issue: #2533

Is that intentional? I use the same vim/neovide config across all my machines, and don't necessarily have my preferred fonts set up on all of them, and my preferred pre-installed font depends on the OS. So the "silent fallback" behavior was very convenient for me.