Wifi connection symbol TFT shield

Hi all,

I have a 3.5" TFT display (ILI9481) and an esp8266 wifi module hooked up to a mega.

My question is:

How do I create and display a wifi connection symbol that at least shows that the Arduino is connected to the wifi and at most changes with the strength of the signal?

I am mainly interested in how to actually create the symbols as I have got the display working and will figure out the wifi side of things later.

Thanks in advance for your input.

Typically your library will let you draw a filled rectangle, this can be small to represent an "LED" indicator on the screen wherever you like.

Fill color could change with signal strength, red for weak or no signal, orange, yellow and green representing increasing signal strength.