Bug 81292 [Preferences] Message area should be disabled when empty
200412152000 My GTK theme has a textured background by default. There is a section of the preference dialog next to the Default/Apply buttons that does not respect this. I suspect there is an empty label/text widget that has had its background colour set manually. Screencap forthcoming
bundles/org.eclipse.jface/src/org/eclipse/jface/preference/PreferencePage.java
}
			});
            applyButton = new Button(buttonBar, SWT.PUSH);
			applyButton.setText(labels[1]);
			Dialog.applyDialogFont(applyButton);
			data = new GridData(GridData.HORIZONTAL_ALIGN_FILL);
			minButtonSize = applyButton.computeSize(SWT.DEFAULT, SWT.DEFAULT,
					true);
			data.widthHint = Math.max(widthHint, minButtonSize.x);
			applyButton.setLayoutData(data);
			applyButton.addSelectionListener(new SelectionAdapter() {
				public void widgetSelected(SelectionEvent e) {
					performApply();
				}
			});
            applyButton.setEnabled(isValid());
            applyDialogFont(buttonBar);
        } else {
            /* Check if there are any other buttons on the button bar.
             * If not, throw away the button bar composite.  Otherwise
             * there is an unusually large button bar.
             */
            if (buttonBar.getChildren().length < 1)
                buttonBar.dispose();
        }
    }
	/**
	 * Create a message area for the receiver.
	 * @param content
	 */