The Settings "Background light control" list only offers apps that have BOTH package identity and the com.microsoft.windows.lighting windows.appExtension in their manifest (declaration verified against Lenovo's LegionLightingController manifest) — without a grant, Windows hands the LEDs to vRIO only while it is the foreground window, i.e. never during gameplay. pkg/AppxManifest.xml is a sparse package (external location) that grants the existing VRio.App.exe identity as-is: win32App runtime behavior, runFullTrust + unvirtualizedResources, and the lighting app-extension. Register-vRIO.ps1 registers/unregisters it against any exe folder (repo build or an extracted dist zip); unsigned registration needs Developer Mode. Identity is granted through shell activation only — launch from the Start menu entry or an AUMID taskbar pin, not by double-clicking the exe (the script prints this warning). Verified end-to-end on this machine: process reports the package full name, vRIO appears in the background-control list, and the wire log shows the withheld → available transition once granted. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Public folder for the com.microsoft.windows.lighting app extension (required by the manifest schema).