static OverridableFrameSettingsArea()
        {
            attributes      = new Dictionary <FrameSettingsField, FrameSettingsFieldAttribute>();
            attributesGroup = new Dictionary <int, IOrderedEnumerable <KeyValuePair <FrameSettingsField, FrameSettingsFieldAttribute> > >();
            Dictionary <FrameSettingsField, string> frameSettingsEnumNameMap = FrameSettingsFieldAttribute.GetEnumNameMap();
            Type type = typeof(FrameSettingsField);

            foreach (FrameSettingsField enumVal in frameSettingsEnumNameMap.Keys)
            {
                attributes[enumVal] = type.GetField(frameSettingsEnumNameMap[enumVal]).GetCustomAttribute <FrameSettingsFieldAttribute>();
            }

            frameSettingsKeywords = attributes
                                    .Values.Where(v => !string.IsNullOrEmpty(v?.displayedName))
                                    .Select(v => v.displayedName?.ToLowerInvariant()).ToArray();
        }