Syncing iTerm light and dark mode with neovim

My workspace gets pretty bright during the day, and I find it easier to work with a light color scheme neovim config then. But syncing everything up has been a hassle. Notes on how I get this to work, because I'm far from a neovim & lua master:

This is all using LazyVim, but may differ for you.

iTerm

I have an iTerm profile called "Light" that has a light background theme.

Neovim background

I want Neovim to match iTerm's light or dark setting. So I pull the $ITERM_PROFILE environment variable that iTerm sets and use it to switch neovim's background option:

In ~/.config/neovim/lua/config/options.lua

opt.background = vim.fn.getenv("ITERM_PROFILE") == "Light" and "light" or "dark"

Neovim color scheme

My default color scheme - aurora - doesn't look that great in light mode, so I switch to papercolor. So, in ~/.config/neovim/lua/plugins/color.lua, another switch based on the iTerm environment variable:

return {
  {
    "LazyVim/LazyVim",
    opts = {
      colorscheme = vim.fn.getenv("ITERM_PROFILE") == "Light" and "papercolor" or "aurora",
    },
  }
}