How to fix “Authentication is required to create a color profile/managed device” when using xrdp

For those folks getting that annoying message when RDP into a Linux host running xrdp.

Create a new config file here:

$sudo nano /etc/polkit-1/localauthority/50-local.d/45-allow-colord.pkla

and put:

[Allow Colord all Users]
Identity=unix-user:*
Action=org.freedesktop.color-manager.create-device;org.freedesktop.color-manager.create-profile;org.freedesktop.color-manager.delete-device;org.freedesktop.color-manager.delete-profile;org.freedesktop.color-manager.modify-device;org.freedesktop.color-manager.modify-profile
ResultAny=no
ResultInactive=no
ResultActive=yes

Credit: https://devanswe.rs/how-to-fix-authentication-is-required-to-create-a-color-profile-managed-device-on-ubuntu-20-04-20-10/