When minimising a window with the custom Orion+ icon set, the custom icon doesn't carry over to the minimised window. See the below screen recording for reference. Unsure if this behaviour occurs with other non-Orion+ icons (haven't tested this).
Orion Version 1.1.1 (149), WebKit 625.1.8
macOS 26.5.2 (25F84)
MacBook Air M4