Dear Maintainer,
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   * What led up to the situation?

     Open gnome-terminal -> menu: Edit -> Profiles ...
     -> choose any listed profile then click button "Edit"
     -> click on tab "Colors"
     -> e.g. click on color field shown right of string "Background color:"
     -> window "Choose Terminal Background Color" opens
     -> below the string "Custom", some color buttons are listed representing
        formerly created customized colors

   * What exactly did you do (or not do) that was effective (or
     ineffective)?

     If I want to delete/remove a color button representing a formerly created
     customized button, I can't do so. There seems to be no action defined that
     removes a formerly created customized color button.

   * What was the outcome of this action?

     Since the desired action seems not to be available, I can't delete/remove
     a formerly created customized color button. Obviously, it is only possible
     to add new customized color buttons. This produces an unwanted list of too
     many customized color buttons which the user doesn't want to have listed
     anymore.

   * What outcome did you expect instead?

     A right mouse click on a customized color button shows up a pop-up menu
     showing just one entry/action: Customize. I like to expect a 2nd pop-up
     menu entry "Delete" that can be used to delete the customized color
     button from the list of remaining customized color buttons.

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