feat(config): add cyberdream theme and tmux-palette integration

dot_config/tmux/tmux.conf

@@ -1,7 +1,9 @@
-# Prefix
-set -g prefix C-Space
-set -g prefix2 C-b
-bind -N "Send prefix" C-Space send-prefix
+# Prefix: ctrl+b (Ghostty's ctrl+shift chords send it as \x02). ctrl+space
+# is not a prefix: it opens tmux-palette (root table, see Plugins).
+set -g prefix C-b
+set -gu prefix2
+unbind -q C-Space
+bind -N "Send prefix" C-b send-prefix
 
 set-option -g renumber-windows on
 set -g base-index 1
@@ -9,7 +11,7 @@ setw -g pane-base-index 1
 
 # Config and help
 bind -N "Reload configuration" q source-file ~/.config/tmux/tmux.conf \; display "Configuration reloaded"
-bind -N "Show Tmux keybindings" ? display-popup -E -w 80% -h 70% -T "Tmux keybindings" "omarchy-menu-tmux-keybindings --print | less -R"
+bind -N "Show Tmux keybindings" ? display-popup -E -w 80% -h 70% -T "Tmux keybindings" "if command -v omarchy-menu-tmux-keybindings >/dev/null; then omarchy-menu-tmux-keybindings --print; else tmux list-keys -N; fi | less -R"
 
 # Vi mode for copy
 setw -g mode-keys vi
@@ -127,18 +129,19 @@ set -gw automatic-rename on
 # stale, so a `cd` relabels without waiting for more pane output).
 set -gw automatic-rename-format '#{window_icon} #{=/27/…:#{?#{&&:#{m/r:^(n?vim|vim|nvim-qt|hx|helix)$,#{pane_current_command}},#{m/r:^[^/|]+ \| ,#{pane_title}}},#{s/ \| .*$//:pane_title},#(~/.config/tmux/tab-label.sh #{q:pane_current_path} #{window_id})}}'
 set -g set-titles on
-set -g set-titles-string '#h:#W'
+# The terminal (Ghostty) window title is the session name: one session per
+# Ghostty window, so compositor groups/tabs list sessions, not host:window.
+set -g set-titles-string '#S'
 
-# Theme — kitty's powerline/angled tab bar (kitty.conf + the Omarchy kitty
-# template): the current window is an accent-tinted plate with the accent as
-# its text, the rest sit flush with the background in muted text. Colors are
-# cyberdream defaults, overridden per Omarchy theme by tmux.conf rendered from
-# ~/.config/omarchy/themed/tmux.conf.tpl.
+# Theme — kitty's powerline/angled tab bar: the current window is an
+# accent-tinted plate (accent mixed 20% into the background) with the accent
+# as its text, the rest sit flush with the background in muted text. Fixed
+# cyberdream palette, shared with Ghostty, nvim, yazi and television so every
+# machine (Linux, mac, goliath) looks the same.
 set -g @tab-bg "#16181a"
 set -g @tab-fg "#7b8496"
 set -g @tab-active-bg "#243348"
 set -g @tab-active-fg "#5ea1ff"
-source-file -q ~/.local/state/omarchy/current/theme/tmux.conf
 
 set -g status-style "bg=default,fg=#{@tab-fg}"
 # bg=default inside a tab format means "the window-status-*-style bg", not the
@@ -160,8 +163,8 @@ set -g status-right "#[fg=#{@tab-active-fg}]#{?pane_in_mode,COPY ,}#{?client_pre
 # as in kitty (tab_bar_background none). kitty's separator rule: a solid
 #  into a differently colored neighbour, thin  between two inactive
 # tabs, none after the last. The arrow into the current tab is painted in
-# @tab-bg, the window background: ghostty-tmux sets it per session to
-# Ghostty's own background so it blends into the window. (Plain  is
+# @tab-bg, the window background (Ghostty's cyberdream background, the same
+# hex), so it blends into the window. (Plain  is
 # one of Ghostty's built-in sprites and fills the whole cell even with
 # adjust-cell-height; inverse glyphs such as  come from the font and
 # leave gaps.)
@@ -182,6 +185,12 @@ set -g @plugin 'joshmedeski/tmux-nerd-font-window-name'
 set -g @plugin 'tmux-plugins/tmux-resurrect'
 set -g @plugin 'tmux-plugins/tmux-continuum'
 set -g @plugin 'omerxx/tmux-sessionx'
+set -g @plugin 'eduwass/tmux-palette'
+
+# tmux-palette: Raycast-style command palette on ctrl+space (no prefix; needs
+# bun). User config (commands ported from kitty, cyberdream theme, Ghostty
+# shortcut labels) lives in ~/.config/tmux-palette/.
+set -g @palette-key 'C-Space'
 
 # sessionx: fuzzy session switcher/creator on prefix + o (Ghostty
 # ctrl+shift+o). A query with no match goes to zoxide; uses fzf --tmux.