This demo shows off the ColorPicker window.
The ColorPicker lets you ask the user to select a color, visually, using a callback interface. While the UI toolkit doesn't support text input entry, there is a work-around to prompt the user to enter a color by hex code with assistance of your program.
In this example program, clicking on the Hex color button will prompt you via STDIN (check the terminal window!) to enter a color value. The UI will be frozen until your answer is given. For programs that don't need this, the Hex color button does nothing when clicked.
From your terminal, just type go run main.go from this
example's directory.