Chat Style Customization Request

Hello Support,
I was talking to Patrick on the live support about style customization of the Chat plugin and he said I could request it by making a post. He said I should provide you with the theme, what I want it to look like and also my website url. Here are those information.
Theme: Highend by HB-Themes
What I want it to look like: exactly like the WPMUDEV live chat
My site url: niu.network
Thank you so much!