This puzzle belongs to the puzzle series: hyper-modern art
The two friends move on to the next room.
"You know what, the moving and flashing painting next door was nice."
"I'm glad you found something you liked. How about this piece? A plain painting combined with a real keypad being glued in. I wonder if we really need this PIN to get to the next room...."
"Likely. What is the painting called, maybe there is some hint?"
"It's strangely called
Dotting the eyes and crossing the teas."
"Oh, well. I guess you better take out your HUD, because I will definitely not touch the keypad without the proper code. I've been burnt before, you know...."
The task is to find the 7-digits PIN code from this image and to explain how it can be found from the image. It is coded into what you see, so no need to get number crunching with the digital data.
I've added the enigmatic-puzzle tag on purpose and you may want to post partial answers or comments as well. (Seeing the thought-process of solvers helps me improving my puzzles. And, ah, to spot mistakes, if there are any.)