chore(icons): deprecate emoji icons in favor of nerdfonts

Author: sudo-tee

README.md

@@ -170,7 +170,7 @@ require('opencode').setup({
     display_cost = true, -- Display cost in the footer
     window_highlight = 'Normal:OpencodeBackground,FloatBorder:OpencodeBorder', -- Highlight group for the opencode window
     icons = {
-      preset = 'emoji', -- 'emoji' | 'text'. Choose UI icon style (default: 'emoji')
+      preset = 'nerdfonts', -- 'nerdfonts' | 'text'. Choose UI icon style (default: 'nerdfonts')
       overrides = {}, -- Optional per-key overrides, see section below
     },
     output = {

lua/opencode/types.lua

@@ -96,7 +96,7 @@
 ---@field display_context_size boolean
 ---@field display_cost boolean
 ---@field window_highlight string
----@field icons { preset: 'emoji'|'text'|'nerdfonts', overrides: table<string,string> }
+---@field icons { preset: 'text'|'nerdfonts', overrides: table<string,string> }
 ---@field loading_animation OpencodeLoadingAnimationConfig
 ---@field output OpencodeUIOutputConfig
 ---@field input { text: { wrap: boolean } }

lua/opencode/ui/icons.lua

@@ -102,13 +102,30 @@ local presets = {
   },
 }
 
+local deprecated_warning_shown = false
+
+local deprecated_warning_shown = false
+
 ---Get icon by key, honoring preset and user overrides
 ---@param key string
 ---@return string
 function M.get(key)
   local ui = (config.ui or {})
   local icons_cfg = ui.icons or {}
-  local preset_name = icons_cfg.preset or 'emoji'
+  if icons_cfg.preset == 'emoji' then
+    icons_cfg.preset = nil
+    if not deprecated_warning_shown then
+      vim.schedule(function()
+        vim.notify(
+          "[opencode] 'emoji' preset is deprecated. Using 'nerdfonts' preset instead. Please update your configuration.",
+          vim.log.levels.WARN,
+          { title = 'Opencode' }
+        )
+      end)
+      deprecated_warning_shown = true
+    end
+  end
+  local preset_name = icons_cfg.preset or 'nerdfonts'
   local preset = presets[preset_name] or presets.emoji
 
   -- user overrides table: icons = { overrides = { key = 'value' } }