feat: synchronize file type icons with background

lua/barbecue.lua

@@ -71,6 +71,7 @@ function M.setup(cfg)
   theme.load()
 
   autocmd.create_colorscheme_synchronizer()
+  autocmd.create_file_icon_color_synchronizer()
   if config.user.attach_navic then autocmd.create_navic_attacher() end
   if config.user.create_autocmd then autocmd.create_updater() end
 

lua/barbecue/autocmd.lua

@@ -7,6 +7,7 @@ local theme = require("barbecue.theme")
 local GROUP_NAVIC_ATTACHER = "barbecue.navic_attacher"
 local GROUP_UPDATER = "barbecue.updater"
 local GROUP_COLORSCHEME_SYNCHRONIZER = "barbecue.colorscheme_synchronizer"
+local GROUP_FILE_ICONS_SYNCHRONIZER = "barbecue.file_icons_synchronizer"
 
 local M = {}
 
@@ -53,4 +54,18 @@ function M.create_colorscheme_synchronizer()
   })
 end
 
+---Update file type icon colors on background mode change.
+---Will only create autocmd if `nvim-web-devicons` is found.
+function M.create_file_icon_color_synchronizer()
+  local devicons_ok = pcall(require, "nvim-web-devicons")
+  if not devicons_ok then return nil end
+
+  vim.api.nvim_create_autocmd("OptionSet", {
+    pattern = "background",
+    desc = "File Icon Color Synchronizer",
+    group = vim.api.nvim_create_augroup(GROUP_FILE_ICONS_SYNCHRONIZER, {}),
+    callback = function() ui.update() end,
+  })
+end
+
 return M

lua/barbecue/theme.lua

@@ -188,4 +188,6 @@ function M.get_file_icon(filename, filetype)
   }
 end
 
+function M.reset_icon_cache() file_icons = {} end
+
 return M