Click on the vertical bar, or the top button, for the required key.
The button at the top of the color key highlights.
(Optional)
Use <Ctrl> data points to select additional keys to delete.
Do one of the following:
Press the <Delete> key.
or
Right-click to open a menu and select Delete.
Note: The first and last keys cannot be deleted. If, however, you drag another key all the way to either end of the gradient color bar, then that key replaces the end key.
