No dimming of non-matching items in `--raw` mode in Vim

[jannis-baum]

Hello! I noticed that fzf --raw in Vim doesn't seem to dim the non-matching items.

When I run echo "some\nrandom\nwords" | fzf --raw in the shell and type in s the non-matching item random is dimmed as expected:

However, when I run call fzf#run(fzf#wrap({ 'source': ["some", "random", "words"], 'options': ['--raw'] })) in Vim type in s it looks like this:

i.e. the dimming doesn't happen. I would have expected it to behave the same as it does in the shell. I tested this with fzf versions 0.66.1 and 0.67.0 (Homebrew) and on Vim and Nvim, it's the same everywhere.

EDIT I'm on kitty 0.44.0 and macOS 26.1 in case that matters. I can also reproduce it on the default macOS terminal.

EDIT 2

Nvim version:

NVIM v0.11.5
Build type: Release
LuaJIT 2.1.1761727121

Vim version:

VIM - Vi IMproved 9.1 (2024 Jan 02, compiled Oct 12 2025 14:37:02)
macOS version - arm64
Included patches: 1-1850
Compiled by Homebrew

[junegunn]

Hmm, Vim terminal doesn't seem to render dimmed colors. Try this in your shell, and in :term in Vim.

printf "regular vs. \x1b[2mdimmed\x1b[m\n"

[jannis-baum]

That's a bummer! I found adding support for that as an open issue for Vim but nothing on Nvim. Running nvim -V16 --clean outputs information about the terminal and there it does list the correct escape code for dimming but it doesn't work anyways. I might open an issue for it on Nvim, I'll figure out what the policy for cases like these is first.

For now I'll use something like --color=nomatch:strip:gray as a workaround. Feel free to close this in case you don't want it laying around since it's not really fzf's fault/problem :)