Install libcolorchooser-java by entering the following commands in the terminal:
sudo apt update sudo apt install libcolorchooser-java
Description:
A Swing widget for selecting colors
The Quick Color Chooser is a Swing component for that lets you choose a color in a single mouse gesture. When clicked, it pops up a palette; dragging the mouse over the palette, you will see the component's color update. Release the mouse when it is the desired color.
Homepage: http://java.net/projects/colorchooser
Version: 1.0+dfsg-1
Section: universe/java