SSD1963 TFT Touch GUI

Does anyone have or maybe someone knows of a GUI development tool for Arduino Mega and this display/shield? I have the low-level libraries working but wondered if there was a tool for building a GUI out there? I've seen some eye-popping stuff in the ads where these are sold, but don't have any idea how they were done, or if they are just images. I'm hoping to find a tool for building rotary controls and buttons with visuals and touch. If it had a menu tree function that would be even better. Does this exist?

Thanks in advance for any help,

Buddy

there is this one which is $99.00 USD.