# Closed captions: add 0% background opacity on Vega OS **URL:** \ **Category:** Feature Requests\ **Created:** [September 29, 2026, 12:27am UTC](https://community.amazondeveloper.com/t/closed-captions-add-0-background-opacity-on-vega-os/29245 "2026-09-29T00:27:57Z")\ **Posts on this page:** 1\ **Showing post:** 4
**Author:** ![amen](https://avatars.discourse-cdn.com/v4/letter/a/ee7513/32.png) [@amen](https://community.amazondeveloper.com/u/amen)\ **Post date:** [September 29, 2026, 2:45am UTC](https://community.amazondeveloper.com/t/closed-captions-add-0-background-opacity-on-vega-os/29245/4 "2026-09-29T02:45:13Z")
Hi @Thiago_Araujo, Thanks for the clear, well-scoped request, and for noting the difference from Fire OS. On Vega OS, the system closed-caption opacity options for both Text Background and Window Background currently start at 25%, with no 0% / “None” option. This aligns with our current caption guidance, where background/opacity steps are documented as 25%, 50%, 75%, 100% ([Best Practices for Closed Captions in Vega](https://community.amazondeveloper.com/t/best-practices-for-closed-captions-in-vega/14134) ). I’ve passed on the details to our team for further evaluation and investigation. On the app side: apps that implement their own in-app caption styling can render captions with a fully transparent background themselves. For apps that rely on the system caption style, Vega does not currently expose a public API for apps to read or override the system caption style (related thread ( [Possible to get closed caption style?](https://community.amazondeveloper.com/t/possible-to-get-closed-caption-style/27764) )), so the system 25% minimum applies. We don’t have a committed timeline, but we’ll post updates via Announcements and the Vega docs once there’s news. Thanks again for helping improve the Vega platform. Warm regards, Aishwarya --- _[View the full topic](https://community.amazondeveloper.com/t/closed-captions-add-0-background-opacity-on-vega-os/29245)._