Hey Developers!
Today, we’ve launched support for adding Alt Text to Experience Thumbnails! 
For those who don’t know - alt text (short for alternative text) is the text that acts as an image description so that people using assistive technologies (such as screen readers) can understand their intent. Because thumbnails often contain text and provide additional information about an experience that is not necessarily reflected by its name or description, it’s a perfect use case for user-generated alt text.
You can add alt text to your experience thumbnails on both the Develop page and while previewing experience thumbnails within Game Settings in Studio.
Not only can you add alt text to your experience thumbnails now, but you can also add localized alt text to your localized experience thumbnails! Localized experience thumbnails are inherently different than ones in the base language, so alt text is not automatically translated. You can add alt text to your localized experience thumbnails in the Translator Portal.
We have updated the Promotional Thumbnails article to include best practices for writing alt text. Here are some quick notes:
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Avoid redundant text like “Image of” or “Picture of” before the description.
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Include any text shown in your thumbnail.
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Always describe the specific thumbnail, not your experience generally.
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Keep it concise.
If you’re wondering “Why should I add alt text to my thumbnails?”, there are several reasons! The main one is to ensure any information about your experience is accessible to everyone. But an excellent side effect of writing alt text is - when you’re forced to think about the meaning behind an image, you may realize it’s not as clear as you thought it was and go back to the drawing board. You will likely end up with a thumbnail that clearly conveys your intended meaning.
Big thanks to @TheNicell for all his work on this project 
. As always, if you find any bugs, have any feedback, or want to ask any questions, please do so in the comments below!
If you’re inspired to learn more about accessibility and what you can do to make your experiences accessible, please check out our Accessibility Best Practices article.
