From the YouTube description:
I needed a simple to use color picker for another project so decided to make one that I could import into it to set a closed figure's boundary color and fill color.
This is the result.
To pick a color you simply touch or drag over the area of the color palette to pick the color you want.
Once you have selected a color you can test different transparency settings with a slider control.
Feel free to make any changes or improvements to it and let me know if it helps you.
The color picker is set to a fixed size of 480x270px and it is assumed that the device is in landscape orientation.
If your device has a larger screen, it will just float in the center of the screen.
aia project attached.