add zen mode

lua/plugins/colorscheme.lua

@@ -3,6 +3,7 @@
 return {
     { "catppuccin/nvim", 
         name = "catppuccin",
+        lazy = false,
         priority = 1000,
         config = function()
             vim.cmd([[colorscheme catppuccin-frappe]])

lua/plugins/modes.lua

@@ -0,0 +1,27 @@
+-- some addtional mode like zen mode
+--
+return {
+    {
+        "folke/zen-mode.nvim",
+        opts = {
+            window = {
+                width = 80,
+                height = 0.8,
+                options = {
+                    signcolumn = "no",
+                }
+            },
+            on_open = function()
+                vim.g.zen_original_background = vim.o.background  -- 保存当前背景
+                vim.o.background = "light"                       -- 强制改为 light
+                vim.cmd("colorscheme " .. vim.g.colors_name)      -- 重新应用当前主题（确保背景生效）
+            end,
+            on_close = function()
+                if vim.g.zen_original_background then
+                    vim.o.background = vim.g.zen_original_background  -- 恢复背景
+                    vim.cmd("colorscheme " .. vim.g.colors_name)     -- 重新应用主题
+                end
+            end,
+        },
+    }
+}