Panels are a good way for your viewers to learn more about you, your schedule, what games you like to play and it’s a great way to tie in the theme of your channel together. Complimenting fonts, colors and styles should be used to connect your overlay and logo with them.
Sub Badges are a great way to show those that support you that you care about them. They’re another element of your Twitch channel that should complement your theme.
Emotes are another way of differentiating yourself versus others. Having custom Twitch emotes is like having an inside joke with your stream. It can be a good way for letting your viewers give you a hard time about a missed play, or even to welcome a new sub into the chat!
Matching your channel name to all other social media handles should be a priority. Your viewers will recognize the name across Reddit, Twitch, Twitter, Facebook, Youtube among the others.
If you’re still deciding on a name then this resource can be a good way to see if all of the social handles for your name are available.
I try not to fanboy about Dr. Disrespect too much, but the Twitch branding is just too damn good. Dr. Disrespect, for those of you who do not know, is 2017’s streamer of the year and for good reason. His personal is that of a WWE character. His branding is centered around him being “the best” and “the two time champion”. Since he is the back to back champ, he builds the theming around that. When you subscribe to the Doc, you are “given a locker” and “have access to VIP parts of the arena” to join the hundreds of thousands (what he calls millions) to watch him dominate with his signature style of “violence, speed and momentum”. All of these elements are separate to the look of his channel but having a “character” in mind helps your logo, overlay and other items on your branding agenda to fall into place.