Fix color

init.lua

@@ -16,10 +16,15 @@ local mqttBaseTopic = core.settings:get("ledtree_base_topic") or "ledtree"
 
 local client = mqtt.connect(data.url, data.clientId, data.username, data.password)
 
+mqtt.subscribe(client, "ledtree/led/1", function(topic, payload)
+        core.chat_send_all("Received message from topic "..topic..": "..payload)
+    end
+)
+
 local change_color = function(player, led_id)
     local formspec = "size[3,3]" ..
                      "image_button[0,0;1,1;red.png;red;red;false;false;]" ..
-                     "image_button[1,0;1,1;green.png;gren;green;false;false;]" ..
+                     "image_button[1,0;1,1;green.png;green;green;false;false;]" ..
                      "image_button[2,0;1,1;blue.png;blue;blue;false;false;]" ..
                      "image_button[0,1;1,1;yellow.png;yellow;yellow;false;false;]" ..
                      "image_button[1,1;1,1;cyan.png;cyan;cyan;false;false;]" ..

settingtypes.txt

-ledtree_base_topic (Base topic (e.g. /[base_topic]/led/1)) string ledtree
+ledtree_base_topic "Base topic (e.g. [base_topic]/led/1)" string "ledtree"