I need help from the Teensy Pros! Simple I hope coding issue

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Let me start by saying I am no coder in any sense.
I have trudged through this for months and am finally almost done.
My project is a simple push to talk and an LCD. Thankfully everything is working just fine.
My issue is this.

There are two Push to talk buttons.One manipulates keyboard shortcuts and one is push to talk for a radio.
My customer now wants the lcd to blink another color when a button is pushed then return to the original color. It sounds easy enough but I cannot figure it out LOL.

Any help or suggestions would be very welcome.
The code I am using is attached

Thank you for your time!
 

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  • working model.txt
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Can you post a link to the datasheet for the LCD are you using? Does it have a feature to set the background color?
 
I can manipulate the colors just fine. everything on the box works just fine. I just need the code and a place to put it to make the screen blink a different color when a button is pushed.
 
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