add version to world info

res/layouts/pages/worlds.xml.lua

@@ -1,6 +1,13 @@
 function on_open()
     local worlds = world.get_list()
     for _, info in ipairs(worlds) do
+        local major, minor = core.get_version()
+        if info.version[1] > major or info.version[2] > minor then
+            info.versionColor = "#A02010"
+        else
+            info.versionColor = "#808080"
+        end
+        info.versionString = string.format("%s.%s", unpack(info.version))
         document.worlds:add(gui.template("world", info))
     end
 end

res/layouts/templates/world.xml

@@ -14,4 +14,5 @@
             onclick='core.delete_world("%{name}")'>
         <image src='gui/delete_icon' size='32,32' color='#FFFFFF50'/>
     </button>
+    <label color='%{versionColor}' pos='317,44'>%{versionString}</label>
 </container>