Conveyor belt Sushi! Testing out a 4.6" diagonal bar TFT display 🍣 📏 🖥

We got the round displays working on our ESP32-S3 RGB display driver, so now we're moving on to the bar displays! These are longer than most rectangular displays and are kind of fun if you want to, say, animate a sushi conveyor belt. We're having a bit of flakiness from this one; the hsync and vsync or pclk settings given to us by the factory aren't quite right because you can see the display shift up and down. There's also a flickering effect: from us using single-buffer display mode where we draw the next frame on top of the current one while it is displayed. The way to get buttery-smooth animations here is to double-buffer at a cost of twice the RAM requirement.

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