Neovim

Setup

Install

Install thcon.vim with your preferred plugin manager. For example, under packer.nvim:

 -- ~/.config/nvim/config.lua

 local use = require('packager').use
 require('packer').startup(function()
   use 'tpope/vim-surround'
+  use { 'theme-controller/thcon.vim', tag = 'v0.5.0' }
 end)

Load

Replace your existing colorscheme setting with functions that load thcon-managed settings and listen for changes:

 -- ~/.config/nvim/lua/your-appearance.lua

-vim.cmd([[colorscheme evening]])
+-- Load dynamic config file
+vim.cmd([[call thcon#load(v:true)]])
+-- Listen for theme switches and source the appropriate file
+vim.cmd([[call thcon#listen()]])

Create configs

Write a pair of small config files, one for dark-mode settings and one for light-mode:

echo "vim.cmd([[colorscheme evening]])" > ~/.config/nvim/lua/dark.thcon.lua
echo "vim.cmd([[colorscheme morning]])" > ~/.config/nvim/lua/light.thcon.lua

Advanced Usage

Since those files are sourced by each Neovim instance, they can contain any arbitrary lua you'd like. Consider changing statusline themes, adjusting indent levels, or whatever other settings you'd like.

Configuration

Section: [neovim]

Example

[neovim]
dark = "~/Downloads/a-file-from-the-internet.lua"
light = "~/Documents/light-mode-settings.lua"