Overlays are specially setup web pages that get displayed in OBS via a browser source. CastMate allows you to create Overlays using a click and drag interface. Changes you make inside of CastMate
Free animated stream overlays
Champion - Basic Overlays for Twitch and
POPULAR AESTHETIC EDITING OVERLAYS
FREE Live steaming overlays Design
Pastel Shimmer Vtuber Overlays
50 glitch overlays
Glitch Overlays
Overlays — Blog - Textures.com
Do Away with Overlays
Mini-Lite Box Overlays enable parents and teachers to build visual complexity and customize lessons according to the needs of their learner.
Mini-Lite Box: Overlays
Dynamic Shape Overlays with SVG
Map Overlays in Flexmls - METRO MLS Blog
How to Make a Twitch Overlay (No Photoshop) - Design Hub