the focus at the moment.
client.unfocused::
A client which is not the focused one of its container.
+client.urgent::
+ A client which has its urgency hint activated.
bar.focused::
The current workspace in the bottom bar.
bar.unfocused::
All other workspaces in the bottom bar.
+bar.urgent::
+ A workspace which has at least one client with an activated urgency hint.
Colors are in HTML hex format, see below.