Bug 5811 [preferences] Pref to set editor background color
It would be very useful to add a preference to change the background color of the Java editor, since all of the other elements are editable.
org.eclipse.jdt.ui/ui/org/eclipse/jdt/internal/ui/preferences/JavaEditorPreferencePage.java
new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, IJavaColorConstants.JAVADOC_KEYWORD),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, IJavaColorConstants.JAVADOC_KEYWORD + "_bold"),
		
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, IJavaColorConstants.JAVADOC_TAG),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, IJavaColorConstants.JAVADOC_TAG + "_bold"),
		
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, IJavaColorConstants.JAVADOC_LINK),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, IJavaColorConstants.JAVADOC_LINK + "_bold"),
		
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, IJavaColorConstants.JAVADOC_DEFAULT),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, IJavaColorConstants.JAVADOC_DEFAULT + "_bold"),
				
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, CompilationUnitEditor.MATCHING_BRACKETS_COLOR),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, CompilationUnitEditor.MATCHING_BRACKETS),
		
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, ContentAssistPreference.AUTOACTIVATION),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.INT, ContentAssistPreference.AUTOACTIVATION_DELAY),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, ContentAssistPreference.AUTOINSERT),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, ContentAssistPreference.PROPOSALS_BACKGROUND),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, ContentAssistPreference.PROPOSALS_FOREGROUND),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, ContentAssistPreference.PARAMETERS_BACKGROUND),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, ContentAssistPreference.PARAMETERS_FOREGROUND),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, ContentAssistPreference.AUTOACTIVATION_TRIGGERS_JAVA),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.STRING, ContentAssistPreference.AUTOACTIVATION_TRIGGERS_JAVADOC),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, ContentAssistPreference.SHOW_VISIBLE_PROPOSALS),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, ContentAssistPreference.ORDER_PROPOSALS),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, ContentAssistPreference.CASE_SENSITIVITY),
		new OverlayPreferenceStore.OverlayKey(OverlayPreferenceStore.BOOLEAN, ContentAssistPreference.ADD_IMPORT)
		
	};