Hola estimados 
Agradecería mucho vuestra ayuda en lo siguiente.
Estoy tratando de ejecutar Tropy ( https://deepinenespañol.org/wiki/tropy/ ) en la Terminal Deepin, pero me da el siguiente error...

❯ tropy
(tropy:14517): Gtk-WARNING **: 17:44:04.331: Theme parsing error: gtk.css:3611:22: 'none' is not a valid color name
libva error: /usr/lib/x86_64-linux-gnu/dri/iHD_drv_video.so init failed

Ya hice las configuraciones iniciales recomendadas...

Basic Installation
==================
Briefly, this distribution package requires no installation step. You
can move this directory to any suitable location, for example, /opt/tropy,
and start the tropy binary there. In the following instructions, change
/opt/tropy to your preferred location.

1. Move this directory to /opt/tropy
2. Add /opt/tropy to your PATH environment variable
3. Copy the Tropy icons:
cp -r /opt/tropy/resources/icons ~/.local/share/
4. Register Tropy's mimetypes:
cp -r /opt/tropy/resources/mime ~/.local/share/
5. Copy the file tropy.desktop file:
cp /opt/tropy/tropy.desktop ~/.local/share/applications/
6. And update MIME cache database:
update-desktop-database ~/.local/share/applications/

NOTA: También probé la versión AppImage con el mismo error.

El resto de configuraciones NO las toqué y si a alguien se le ocurre leerlas y entiende el ingles mejor que Yo, son las siguientes...

Updating
========
When updating to newer version of Tropy, simply replace your
the entire installation directory with the new one.

Dark Theme
==========
When using the dark theme you may want to force to use your
GTK theme's dark variant. Generally, you will have to restart
Tropy for the window frame to update accordingly; if the menu
bar does not use the dark theme by default, try starting
Tropy with env GTK_THEME=Adwaita:dark tropy using your
preferred theme.

Custom Themes
=============
You can adjust Tropy's themes by placing style-light.css
and style-dark.css files in your user-data folder (or just
style.css for adjusting all themes).

Sandbox
=======
By default, Tropy requires your kernel to be configured with
CONFIG_USER_NS and sysctl kernel.unprivileged_userns_clone=1.

As a fallback, you can sudo chown root chrome-sandbox and
chmod 4755 chrome-sandbox to use the SETUID sandbox instead, or start
Tropy with the --no-sandbox flag.

System Libraries
================
The Tropy tarball is bundled with Electron and includes pre-
compiled modules in resources/app.asar.unpacked/lib/node and
resources/app.asar.unpacked/lib/vendor. If you already have
a system-wide installation of Electron, you can use that instead,
provided it has the same major version as the one bundled here.

Similarly, you can use your distribution's libvips version instead
of the bundled image libraries. To do this, simply remove the
resources/app.asar.unpacked/lib/vendor folder. Please note, that
the major/minor version should match the one included here. Moreover,
the image formats supported by a custom-packaged Tropy may vary,
depending on which libraries are available in your distribution.