style: polish terminal visibility and Git workflow

config/macos/ghostty/config.ghostty

@@ -15,7 +15,7 @@ keybind = ctrl+shift+j=scroll_page_lines:5
 keybind = ctrl+shift+up=scroll_page_lines:-5
 keybind = ctrl+shift+down=scroll_page_lines:5
 
-split-divider-color = #ff6600
+split-divider-color = #3f3f46
 cursor-style = block
 # ssh-env/ssh-terminfo install Ghostty's terminfo on remote hosts and fall
 # back to xterm-256color, so TERM=xterm-ghostty does not break Neovim and

config/shared/nvim/lua/plugins/ui.lua

@@ -195,7 +195,7 @@ return {
         buffer_selected = {
           fg = "#FFFFFF",
           bg = { attribute = "bg", highlight = "TabLineSel" },
-          bold = true,
+          bold = false,
           italic = false,
           underline = true,
           sp = "#007ACC",
@@ -290,7 +290,7 @@ return {
         lualine_c = {
           {
             "branch",
-            color = { fg = "#5fd700", gui = "bold" },
+            color = { fg = "#5fd700" },
             icon = "",
             padding = { left = 0, right = 1 },
           },

config/shared/zsh/aliases.zsh

@@ -29,5 +29,6 @@ alias gp='git push'
 alias gsw='git switch'
 alias gb='git branch'
 alias gd='git diff'
+alias gds='git diff --staged'
 alias gsta='git stash push'
 alias gstp='git stash pop'

tests/common_zsh_test.bash

@@ -1439,6 +1439,25 @@ test_minimal_profile_keeps_system_vim() {
   teardown_test_home
 }
 
+test_git_staged_diff_alias_is_available() {
+  local output
+
+  setup_test_home
+  output="$(
+    PATH="/usr/bin:/bin" \
+      ZDOTDIR="" \
+      /bin/zsh -f -c '
+        _selfishell_command_path() { command -v "$1"; }
+        source "$1"
+        alias gds
+      ' zsh "$ROOT_DIR/config/shared/zsh/aliases.zsh"
+  )"
+
+  [[ "$output" == "gds='git diff --staged'" ]] ||
+    fail "gds does not show staged Git changes: $output"
+  teardown_test_home
+}
+
 test_zsh_plugin_pins_match_dependencies_conf() {
   local repository target_file expected_commit
 

tests/fixtures/neovim/editor_workflow.lua

@@ -120,7 +120,10 @@ local lualine = assert(
 )
 local branch = lualine.opts.sections.lualine_c[1]
 assert(branch.icon == "", "lualine branch icon should be hidden")
-assert(branch.color.fg == "#5fd700" and branch.color.gui == "bold", "lualine branch color is incorrect")
+assert(
+  branch.color.fg == "#5fd700" and branch.color.gui == nil,
+  "lualine branch should use regular bright green"
+)
 assert(branch.padding.left == 0 and branch.padding.right == 1, "lualine branch spacing is incorrect")
 local filetype = lualine.opts.sections.lualine_x[1]
 assert(
@@ -137,6 +140,10 @@ assert(bufferline.event == "VeryLazy", "bufferline is not deferred")
 assert(bufferline.opts.options.always_show_bufferline == false, "bufferline should hide for one buffer")
 assert(bufferline.opts.options.show_buffer_icons == false, "bufferline buffer icons should be hidden")
 assert(bufferline.opts.options.offsets[1].filetype == "NvimTree", "bufferline is not aligned with NvimTree")
+assert(
+  bufferline.opts.highlights.buffer_selected.bold == false,
+  "selected buffer should rely on color and underline instead of bold"
+)
 assert(
   not has_dependency(bufferline, "nvim-tree/nvim-web-devicons"),
   "nvim-web-devicons dependency should be removed"