Wayland is an extensible protocol. The core is literally just "here a buffer", but it has several extension in various phases that can greatly extend its capabi

Wayland is an extensible protocol. The core is literally just "here a buffer", but it has several extension in various phases that can greatly extend its capabilities. This way, a Wayland compositor can be used as a kiosk screen for a single program, or be a full-blown compositor+window manager, all relying on standard Linux interfaces for the display part. Color calibration can absolutely be retrofitted into this (versioned) protocol, and there is work ongoing.