feat: Add pane sync and prefix key status indicators

The indicators used can be customized:

- For the prefix key indicator, set `@themepack-prefix-key-on-format`
and `@themepack-prefix-key-off-format` options. The off format must be
the same length as the on format to avoid weird behavior.
- For the pane sync indicator, set `@themepack-pane-sync-on-format` and
`@themepack-pane-sync-off-format` options. The off format must be the
same length as the on format to avoid weird behavior.

src/powerline/double/_base.tmuxsh

@@ -5,6 +5,8 @@ set -goqF @powerline-status-right-area-right-bg "#{@powerline-color-main-1}"
 
 #= include "powerline/_powerline-options"
 
+#= include "powerline/_themepack-options"
+
 #= include "powerline/_theme-options"
 #= include "powerline/_theme-options-default"
 

src/powerline/double/blue.tmuxtheme

@@ -2,8 +2,6 @@
 # Powerline Double Blue - Tmux Themepack
 #= include "powerline/_info"
 
-#= include "powerline/_themepack-options"
-
 # Powerline color options
 #= include "powerline/_colors/blue"
 #= include "powerline/double/_base"

src/powerline/double/cyan.tmuxtheme

@@ -2,8 +2,6 @@
 # Powerline Double Cyan - Tmux Themepack
 #= include "powerline/_info"
 
-#= include "powerline/_themepack-options"
-
 # Powerline color options
 #= include "powerline/_colors/cyan"
 #= include "powerline/double/_base"

src/powerline/double/green.tmuxtheme

@@ -2,8 +2,6 @@
 # Powerline Double Green - Tmux Themepack
 #= include "powerline/_info"
 
-#= include "powerline/_themepack-options"
-
 # Powerline color options
 #= include "powerline/_colors/green"
 #= include "powerline/double/_base"

src/powerline/double/magenta.tmuxtheme

@@ -2,8 +2,6 @@
 # Powerline Double Magenta - Tmux Themepack
 #= include "powerline/_info"
 
-#= include "powerline/_themepack-options"
-
 # Powerline color options
 #= include "powerline/_colors/magenta"
 #= include "powerline/double/_base"

src/powerline/double/orange.tmuxtheme

@@ -2,8 +2,6 @@
 # Powerline Double Orange - Tmux Themepack
 #= include "powerline/_info"
 
-#= include "powerline/_themepack-options"
-
 # Powerline color options
 #= include "powerline/_colors/orange"
 #= include "powerline/double/_base"

src/powerline/double/purple.tmuxtheme

@@ -2,8 +2,6 @@
 # Powerline Double Purple - Tmux Themepack
 #= include "powerline/_info"
 
-#= include "powerline/_themepack-options"
-
 # Powerline color options
 #= include "powerline/_colors/purple"
 #= include "powerline/double/_base"

src/powerline/double/red.tmuxtheme

@@ -2,8 +2,6 @@
 # Powerline Double Red - Tmux Themepack
 #= include "powerline/_info"
 
-#= include "powerline/_themepack-options"
-
 # Powerline color options
 #= include "powerline/_colors/red"
 #= include "powerline/double/_base"

src/powerline/double/yellow.tmuxtheme

@@ -2,8 +2,6 @@
 # Powerline Double Yellow - Tmux Themepack
 #= include "powerline/_info"
 
-#= include "powerline/_themepack-options"
-
 # Powerline color options
 #= include "powerline/_colors/yellow"
 #= include "powerline/double/_base"