If a custom color palette is no longer needed, you can remove it Cloudera Data Visualization.
Click the Gear icon on the main navigation bar to open the
Administration menu and select Custom
Colors.
In the Manage Custom Colors interface, locate the color you want
to delete and click its Trash can icon.
The Manage Custom Colors interface also supports
deleting multiple custom colors at once.
Each custom color entry includes a checkbox. Select one or more entries to
enable the Delete button. You can also select all color entries
using the checkbox in the header row.
In the Delete Custom Color modal, type DELETE, then click
Delete to confirm.
After deletion, the custom color is removed from the list and is
no longer available in the Style > Colors menu of visuals.