UI 스타일 설정

  // Primary Color For The App
  final Color? primaryColor;

  // Secondary Color For The App
  final Color? secondaryColor;

  // Info Color, Used For Secondary Action Or Info
  final Color? infoColor;

  // Weak Background Color, Lighter Than Main Background, Used For Marginal Space Or Shadowy Space
  final Color? weakBackgroundColor;

  // Weak Background Color, Lighter Than Main Background, Used For Marginal Space Or Shadowy Space
  final Color? wideBackgroundColor;

  // Weak Divider Color, Used For Divider Or Border
  final Color? weakDividerColor;

  // Weak Text Color
  final Color? weakTextColor;

  // Dark Text Color
  final Color? darkTextColor;

  // Light Primary Color, Used For AppBar Or Several Panels
  final Color? lightPrimaryColor;

  // TextColor
  final Color? textColor;

  // Caution Color, Used For Warning Actions
  final Color? cautionColor;

  // Group Owner Identification Color
  final Color? ownerColor;

  // Group Admin Identification Color
  final Color? adminColor;

  // white
  final Color? white;

  // black
  final Color? black;

  // input fill color
  final Color? inputFillColor;

  // grey text color
  final Color? textgrey;

  /// The backgrounud color of Appbar
  final Color? appbarBgColor;
  
  /// The text color of Appbar
  final Color? appbarTextColor;
  
  /// The backgrounud color of multi-messages selection pan
  final Color? selectPanelBgColor;
  
  /// The text and icon color of multi-messages selection panel
  final Color? selectPanelTextIconColor;

  /// The background color of the conversation item.
  final Color? conversationItemBgColor;

  /// The border color of the conversation item.
  final Color? conversationItemBorderColor;

  /// The background color of the conversation item when activated.
  final Color? conversationItemActiveBgColor;

  /// The background color of the conversation item when pinned to top.
  final Color? conversationItemPinedBgColor;

  /// The font color of the conversation title.
  final Color? conversationItemTitleTextColor;

  /// The font color of the conversation last message.
  final Color? conversationItemLastMessageTextColor;

  /// The font color of the time on conversation item.
  final Color? conversationItemTitmeTextColor;

  /// The indicator color of an online status user.
  final Color? conversationItemOnlineStatusBgColor;

  /// The indicator color of an offline status user.
  final Color? conversationItemOfflineStatusBgColor;

  /// The background color of the conversation unread count.
  final Color? conversationItemUnreadCountBgColor;

  /// The font color of the conversation unread count.
  final Color? conversationItemUnreadCountTextColor;

  /// The font color of the draft text on conversation item.
  final Color? conversationItemDraftTextColor;

  /// The color of the icon, indicates that this conversation is not supposed to notify the user when new messages incomes.
  final Color? conversationItemNoNotificationIconColor;

  /// The font color of the slider bar of conversation item.
  final Color? conversationItemSliderTextColor;

  /// The background color of 'clear' button on the slider bar of conversation item.
  final Color? conversationItemSliderClearBgColor;

  /// The background color of 'pin to top' button on the slider bar of conversation item.
  final Color? conversationItemSliderPinBgColor;

  /// The background color of 'delete' button on the slider bar of conversation item.
  final Color? conversationItemSliderDeleteBgColor;

  /// The background color of the conversation item when chosen on desktop.
  final Color? conversationItemChooseBgColor;

  /// The background color of the chat page.
  final Color? chatBgColor;

  /// The background color of the time divider on chat page.
  final Color? chatTimeDividerTextColor;

  /// The background color of the top app bar on chat page.
  final Color? chatHeaderBgColor;

  /// The font color of title on top app bar on chat page.
  final Color? chatHeaderTitleTextColor;

  /// The font color of 'back' text on top app bar on chat page.
  final Color? chatHeaderBackTextColor;

  /// The font color of action on top app bar on chat page.
  final Color? chatHeaderActionTextColor;

  /// The font color of title on top app bar on chat page.
  final Color? chatMessageItemTextColor;

  /// The background color of the message from self.
  final Color? chatMessageItemFromSelfBgColor;

  /// The background color of the message from other users.
  final Color? chatMessageItemFromOthersBgColor;

  /// The font color of the read receipt indicator.
  final Color? chatMessageItemUnreadStatusTextColor;

  /// The background color of the dynamic tongue.
  final Color? chatMessageTongueBgColor;

  /// The font color of the dynamic tongue.
  final Color? chatMessageTongueTextColor;

final CoreServicesImpl _coreInstance = TIMUIKitCore.getInstance();
_coreInstance.setTheme(theme: TUITheme());