To ensure it looks crisp on a 2560x1080 monitor, consider using 1920 x 480 px or larger.
Select a that matches the Twitch "Purple" aesthetic. 2560x1080 Twitch 4K Logo 2560x1080 Resolution W...
This is the standard HD resolution. Even with an ultrawide monitor, using 1920x1080 ensures your branding scales correctly across all viewer devices. Streaming from a 2560x1080 Monitor To ensure it looks crisp on a 2560x1080