Please note that the msg url is not intended for the graphics or gui tools included with esp8266 basic. Only for sending msgs and receiving answers from the device.
Have fun.
http://www.esp8266basic.com/msg-url-advanced.html
http://esp8266basic.com
A BASIC interpreter for your ESP
Working now on Autodrop3d. A 3d printer with automatic part ejection system. https://autodrop3d.com