feat: format-icon for persistent workspaces

man/waybar-sway-workspaces.5.scd

@@ -75,6 +75,7 @@ Additional to workspace name matching, the following *format-icons* can be set.
 - *default*: Will be shown, when no string matches is found.
 - *urgent*: Will be shown, when workspace is flagged as urgent
 - *focused*: Will be shown, when workspace is focused
+- *persistent*: Will be shown, when workspace is persistent one.
 
 # PERSISTENT WORKSPACES
 

src/modules/sway/workspaces.cpp

@@ -205,6 +205,8 @@ std::string Workspaces::getIcon(const std::string &name, const Json::Value &node
       if (config_["format-icons"][key].isString() && node[key].asBool()) {
         return config_["format-icons"][key].asString();
       }
+    } else if (config_["format_icons"]["persistent"].isString() && node["target_output"].isString()) {
+      return config_["format-icons"]["persistent"].asString();
     } else if (config_["format-icons"][key].isString()) {
       return config_["format-icons"][key].asString();
     }