use lua way to handle color scheme errors

add colorscheme

init.lua

@@ -1,5 +1,4 @@
 require "user.options"
 require "user.keymaps"
 require "user.plugins"
-
+require "user.colorscheme"
-

lua/user/colorscheme.lua

@@ -0,0 +1,7 @@
+local colorscheme = "default"
+
+local status_ok, _ = pcall(vim.cmd, "colorscheme " .. colorscheme)
+if not status_ok then
+  vim.notify("colorscheme " .. colorscheme .. " not found!")
+  return
+end

lua/user/plugins.lua

@@ -45,6 +45,10 @@ return packer.startup(function(use)
   use "nvim-lua/popup.nvim" -- An implementation of the Popup API from vim in Neovim
   use "nvim-lua/plenary.nvim" -- Useful lua functions used ny lots of plugins
 
+  -- Colorschemes
+  -- use "lunarvim/colorschemes" -- A bunch of colorschemes you can try out
+  use "lunarvim/darkplus.nvim"
+
   -- Automatically set up your configuration after cloning packer.nvim
   -- Put this at the end after all plugins
   if PACKER_BOOTSTRAP then