Changing VM color while running?

[qubist]

Hi,

I am looking for a way to change VM color (incl. all open windows, icons wherever displayed and any other visual elements) while the qube is running.

How can I do that?

[Marek Marczykowski-Górecki]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Currently it's not supported. Well, kinda - I think if you change the
color and then login to dom0 again, it will be updated.
But if you are asking how to implement such feature, this could be done
by moving VM color (and icon) from cmdline of the qubes-gui-daemon to
its config file and then reloading it on change.

- --
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
-----BEGIN PGP SIGNATURE-----

iQEzBAEBCAAdFiEEhrpukzGPukRmQqkK24/THMrX1ywFAmpH6qYACgkQ24/THMrX
1yw7FQgAmwstevesLoZxQnpPJXBNc3CNd12+YeS/laubpbvmjie9CvIU9rfsXDw6
UQE6+1Hsun+n19YydA2e2JebVJlB7QDx19zuafAm8l6gsbUQ4yNCGKxe0BjUBN1z
EGmqCxbaakZvp4v9BKl5fUwvvLxwG1eFgimdZ5d7lRg0xyGtmbZ3ge90j7VH/Uv5
/S/XE4YmPcrDEZgcMwfObVTL+KAPto2KKs0K26cIIQCpZ/+Suh8FQtsPKoGY2k4v
FPNosLGfp/Z88S3DfzLIc+HVx8XSJtOVzr5nfsGINI7Npap4UCZAJN05QRD456Al
3EigO1Q9IOP9BTXdBp28WU/XQM2iyw==
=Mhqs
-----END PGP SIGNATURE-----

[qubist]

So, basically no way to do it "live" and refresh corresponding GUI elements.
Why is that? What are the challenges?

[Marek Marczykowski-Górecki]

-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

On Fri, Jul 03, 2026 at 06:03:43PM -0000, qubist wrote:
> So, basically no way to do it "live" and refresh corresponding GUI elements.
> Why is that? What are the challenges?

In my previous email I wrote exactly what would need to be done to
support live reload :)

On top of that, likely there needs to be some follow-up work related to
specific window managers, so they actually change the colors of existing
windows (I bet there will be cases where they won't notice it
initially...).

- --
Best Regards,
Marek Marczykowski-Górecki
Invisible Things Lab
-----BEGIN PGP SIGNATURE-----

iQEzBAEBCAAdFiEEhrpukzGPukRmQqkK24/THMrX1ywFAmpH+5gACgkQ24/THMrX
1ywWGgf+N97FPPqe3giE5iALdnd8GkkdMq1RU28EsSHFbJGuaeyiF97oz77h+UsX
Qo5nHuQWOVg+4cY/8RkpzgKVWgdRzvQlGKAA1WBWT3JN+VF92ac3IRV9BKAWR6Xk
PmnrfvAZaraOtcgpCRxpgPaowWjpia3aOynT2qhTwV1XEREco614G4hsE/jeSrrR
diZqBtmc+qaZuq1hDeSRZA1eNXW07T+c/F5td6khLS72gk6MV7kXo13rQNWwuf8/
+rS/YO4W8JSnEtXDHKjcBapVau2gVbuL7r6seOSbJ9SHVjlsnS6/Jsh7QxKjTDhZ
VNzc09CiPpDOCfWeR+hvYFBnxqbtzQ==
=Rxd2
-----END PGP SIGNATURE-----