tmate crashes when using terminal mode and catppuccin

[kthibodeaux]

Description

using tmate (just tmate, using tmux works fine), open nvim and run :terminal then go in to insert mode. tmate will crash

Neovim version

NVIM v0.11.3
Build type: RelWithDebInfo
LuaJIT 2.1.1741730670

Terminal and multiplexer

tmate

Catppuccin version / branch / rev

catppuccin main

Steps to reproduce

if you checkout catppuccin 2990ca95788246d693c43b4b2847eae6f2def6b4 it will work. 548b2a2 is the first breaking commit.

verified that the true color and italic support in the bug template are correct inside tmate

i fixed this for my config by adding this to my catppuccin setup:

      highlight_overrides = {
        all = function(colors)
          return {
            TermCursor = { fg = "NONE", bg = "NONE" },
            TermCursorNC = { fg = "NONE", bg = "NONE" },
          }
        end,
      },

Expected behavior

latest catppuccin should not crash tmate

Actual behavior

it crashes not just nvim, but tmate too

Repro

-- tested this repro.lua without making changes and the bug is reproducable

-- DO NOT change the paths and don't remove the colorscheme
local root = vim.fn.fnamemodify("./.repro", ":p")

-- set stdpaths to use .repro
for _, name in ipairs({ "config", "data", "state", "cache" }) do
  vim.env[("XDG_%s_HOME"):format(name:upper())] = root .. "/" .. name
end

-- bootstrap lazy
local lazypath = root .. "/plugins/lazy.nvim"
if not vim.loop.fs_stat(lazypath) then
  vim.fn.system({ "git", "clone", "--filter=blob:none", "https://github.com/folke/lazy.nvim.git", lazypath })
end
vim.opt.runtimepath:prepend(lazypath)

-- install plugins
local plugins = {
  "catppuccin/nvim",
  -- add any other plugins here
}
require("lazy").setup(plugins, {
  root = root .. "/plugins",
})

vim.cmd.colorscheme("catppuccin")
-- add anything else here