nvim: add plugin 'lukas-reineke/headlines.nvim'

config/nvim/lazy-lock.json

@@ -13,6 +13,7 @@
   "formatter.nvim": { "branch": "master", "commit": "cb4778b8432f1ae86dae4634c0b611cb269a4c2f" },
   "git-messenger.vim": { "branch": "master", "commit": "8a61bdfa351d4df9a9118ee1d3f45edbed617072" },
   "gitlinker.nvim": { "branch": "master", "commit": "cc59f732f3d043b626c8702cb725c82e54d35c25" },
+  "headlines.nvim": { "branch": "master", "commit": "618ef1b2502c565c82254ef7d5b04402194d9ce3" },
   "indent-blankline.nvim": { "branch": "master", "commit": "12e92044d313c54c438bd786d11684c88f6f78cd" },
   "kanagawa.nvim": { "branch": "master", "commit": "ab41956c4559c3eb21e713fcdf54cda1cb6d5f40" },
   "lazy.nvim": { "branch": "main", "commit": "28126922c9b54e35a192ac415788f202c3944c9f" },

config/nvim/lua/fschauen/plugins/headlines.lua

@@ -0,0 +1,28 @@
+return {
+  "lukas-reineke/headlines.nvim",
+
+  dependencies = "nvim-treesitter/nvim-treesitter",
+
+  ft = "markdown",
+
+  config = function()
+    -- These work well with gruvbox.
+    vim.cmd([[highlight Headline1 guibg=#161613]])
+    vim.cmd([[highlight Headline2 guibg=#191915]])
+    vim.cmd([[highlight Headline3 guibg=#1c1c17]])
+    vim.cmd([[highlight Headline4 guibg=#1a1b19]])
+    vim.cmd([[highlight Headline5 guibg=#171a1b]])
+    vim.cmd([[highlight CodeBlock guibg=#121717]])
+    vim.cmd([[highlight Quote guifg=#076678]])
+    vim.cmd([[highlight Dash guifg=#d5c4a1]])
+
+    require("headlines").setup {
+      markdown = {
+        headline_highlights = { "Headline1", "Headline2", "Headline3", "Headline4", "Headline5" },
+        bullets = "",
+        dash_string = "",
+        fat_headlines = false,
+      },
+    }
+  end,
+}