Placeit offers you this FREE channel banner template for Twitch. You can adapt this Twitch overlay to the style of your own channel. You can modify all the colors of the UI. You can modify the fonts and pick your own social media handles. The editor lets you unleash your creative side. Then you can easily download the final visual for free and use it as an overlay for streaming in your favourite live streaming software (e.g. Streamlabs OBS).