Add Tmux

Being able to use a unified terminal setup between local and remote
hosts has some real advantages.

default/themed/tmux.conf.tpl

@@ -0,0 +1,26 @@
+# Status bar
+set -g status-style "bg={{ background }},fg={{ foreground }}"
+
+# Left: session name
+set -g status-left "#[fg={{ background }},bg={{ accent }},bold] #S #[bg={{ background }}] "
+
+# Right: hostname + prefix indicator
+set -g status-right "#[fg={{ accent }}]#{?client_prefix,PREFIX ,}#[fg={{ color8 }}]#h "
+
+# Window tabs
+set -g window-status-format "#[fg={{ color8 }}] #I:#W "
+set -g window-status-current-format "#[fg={{ accent }},bold] #I:#W "
+
+# Pane borders
+set -g pane-border-style "fg={{ color8 }}"
+set -g pane-active-border-style "fg={{ accent }}"
+
+# Messages
+set -g message-style "bg={{ background }},fg={{ accent }}"
+set -g message-command-style "bg={{ background }},fg={{ accent }}"
+
+# Copy mode
+set -g mode-style "bg={{ accent }},fg={{ background }}"
+
+# Clock
+setw -g clock-mode-colour "{{ accent }}"