Update the color slider look with black and white border.
Update the color slider look with black and white border.

imojiengineering/imoji-ios-sdk-ui,alex-hoang/imoji-ios-sdk-ui,alex-hoang/imoji-ios-sdk-ui,kbot/imoji-ios-sdk-ui,imojiengineering/imoji-ios-sdk-ui,alex-hoang/imoji-ios-sdk-ui,imojiengineering/imoji-ios-sdk-ui,imojiengineering/imoji-ios-sdk-ui,kbot/imoji-ios-sdk-ui,alex-hoang/imoji-ios-sdk-ui,kbot/imoji-ios-sdk-ui