let uiConfig = ATCChatUIConfiguration(primaryColor: UIColor(hexString: "#0084ff"),
                                      secondaryColor: UIColor(hexString: "#f0f0f0"),
                                      inputTextViewBgColor: UIColor(hexString: "#f4f4f6"),
                                      inputTextViewTextColor: .black,
                                      inputPlaceholderTextColor: UIColor(hexString: "#979797"))
let channel = ATCChatChannel(id: "channel_id", name: "Chat Title")
let viewer = ATCUser(firstName: "Florian", lastName: "Marcu")
let chatVC = ATCChatThreadViewController(user: viewer, channel: channel, uiConfig: uiConfig)
// Present the chatVC view controller

    let mainThemeBackgroundColor: UIColor = .white
    let mainThemeForegroundColor: UIColor = UIColor(hexString: "#3068CC")
    let mainTextColor: UIColor = UIColor(hexString: "#000000")
    let mainSubtextColor: UIColor = UIColor(hexString: "#7e7e7e")
    let statusBarStyle: UIStatusBarStyle = .default
    let hairlineColor: UIColor = UIColor(hexString: "#d6d6d6")
    let regularSmallFont = UIFont.systemFont(ofSize: 14)
    let regularMediumFont = UIFont.systemFont(ofSize: 17)
    let regularLargeFont = UIFont.systemFont(ofSize: 23)
    let mediumBoldFont = UIFont.boldSystemFont(ofSize: 17)
    let boldLargeFont = UIFont.boldSystemFont(ofSize: 23)
    let boldSmallFont = UIFont.boldSystemFont(ofSize: 14)
    let boldSuperSmallFont = UIFont.boldSystemFont(ofSize: 11)
    let boldSuperLargeFont = UIFont.boldSystemFont(ofSize: 29)
    let italicMediumFont = UIFont.italicSystemFont(ofSize: 17)