https://developer.android.com/agents/skills/xr/display-ai-glasses-with-jetpack-compose-glimmer/skill

To render an Android XR UI on additive display AI glasses, create a dedicated Glasses Projected Activity launched via ProjectedContext on the connected glasses device, ensuring correct visual hierarchy and XR-specific layout constraints.

Yes, Android XR projected activity UIs on additive displays require a mandatory pure black background using Modifier.background(Color.Black) to ensure correct rendering on transparent AI glasses screens.

No, you cannot use MaterialTheme when building Jetpack Compose Glimmer UIs for XR glasses. You must wrap all components in GlimmerTheme instead, prohibiting Material Components entirely.

The minimum readable text size for Android XR AI glasses interfaces is 18sp, equivalent to a 0.6-degree visual angle, ensuring legibility while avoiding problematic font weights and meeting color-contrast requirements.

Handle focus navigation in an Android XR glasses UI by mapping tap, swipe, and back inputs, and apply depth cues using Glimmer DepthEffect with token-driven styling to establish a depth-based visual hierarchy.

Use Google Sans Flex typography for Jetpack Compose Glimmer interfaces on XR displays when needed, applying minimum readable text constraints and avoiding problematic font weights to maintain additive display legibility.