change the line number and fix the color scheme

init.lua

@@ -13,7 +13,7 @@ vim.g.have_nerd_font = true
 --  For more options, you can see `:help option-list`
 
 -- Make line numbers default
--- vim.opt.number = true
+vim.opt.number = true
 -- You can also add relative line numbers, to help with jumping.
 --  Experiment for yourself to see if you like it!
 vim.opt.relativenumber = true
@@ -330,7 +330,11 @@ require('lazy').setup({
         --     i = { ['<c-enter>'] = 'to_fuzzy_refine' },
         --   },
         -- },
-        -- pickers = {}
+        pickers = {
+          colorscheme = {
+            enable_preview = true,
+          },
+        },
         extensions = {
           ['ui-select'] = {
             require('telescope.themes').get_dropdown(),
@@ -737,6 +741,11 @@ require('lazy').setup({
           --    https://github.com/L3MON4D3/LuaSnip?tab=readme-ov-file#keymaps
         },
         sources = {
+          {
+            name = 'lazydev',
+            -- set group index to 0 to skip loading LuaLS completions as lazydev recommends it
+            group_index = 0,
+          },
           { name = 'copilot' },
           { name = 'nvim_lsp' },
           { name = 'luasnip' },
@@ -758,7 +767,7 @@ require('lazy').setup({
       -- Like many other themes, this one has different styles, and you could load
       -- any other, such as 'tokyonight-storm', 'tokyonight-moon', or 'tokyonight-day'.
       -- vim.cmd.colorscheme 'tokyonight-night'
-      vim.cmd.colorscheme 'catppuccin-frappe'
+      vim.cmd.colorscheme 'darkblue'
 
       -- You can configure highlights by doing something like:
       vim.cmd.hi 'Comment gui=none'