cmd_client_*: support optional args for i3 compat

For i3 compatibility, allow the indicator and child_border colors values
to be optional. The indicator will fallback to sane defaults and
child_border will fallback to the background color for the class.

1 files changed, 8 insertions, 7 deletions

diff --git a/sway/sway.5.scd b/sway/sway.5.scd
index 52ee9d28..29e9809b 100644
--- a/sway/sway.5.scd
+++ b/sway/sway.5.scd
@@ -442,15 +442,16 @@ runtime.
                 bindswitch lid:toggle exec echo "Lid moved"
 ```
 
-*client.<class>* <border> <background> <text> <indicator> <child_border>
-        Configures the color of window borders and title bars. All 5 colors are
-        required, with the exception of *client.background*, which requires exactly
-        one. Colors may be specified in hex, either as _#RRGGBB_ or _#RRGGBBAA_.
+*client.background* <color>
+        This command is ignored and is only present for i3 compatibility.
 
-        The available classes are:
+*client.<class>* <border> <background> <text> [<indicator> [<child_border>]]
+        Configures the color of window borders and title bars. The first three
+        colors are required. When omitted _indicator_ will use a sane default and
+        _child_border_ will use the color set for _background_. Colors may be
+        specified in hex, either as _#RRGGBB_ or _#RRGGBBAA_.
 
-        *client.background*
-                Ignored (present for i3 compatibility).
+        The available classes are:
 
         *client.focused*
                 The window that has focus.