Use images sparingly – only when needed.
Visuals should be used only to provide context, not for entertainment. Include thumbnails in lists only when they clearly help the user to make content decisions.
Videos and animated images are not allowed.
Advertising content is allowed only in very limited contexts. Some advertising can be provided via the sound channel, with audio streaming. However, text-based advertising is limited to the advertiser’s name or the product name, and graphical advertising is limited to the advertiser’s corporate logo.