How to change background picture on login screen SDDM?

At other linuxes i used to edit “background=” at apropriate /usr/share/sddm/themes//theme.conf

But at Fedora 30 everything is confused.

/etc/sddm.conf says:

[Theme]                                                                                                                                       
# Current theme name                                                                                                                          
#Current=01-breeze-fedora

but there is no 01-breeze-fedora theme

$ ls -1 /usr/share/sddm/themes/
02-lxqt-fedora
elarun
maldives
maya

I tried change symbolic link /usr/share/backgrounds/default.png to point to my disired background.

No, background not change.

Q: How to change background picture on login screen SDDM in Fedora 30 LXQT?

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You should be able to install it:

$ dnf -q list sddm-\*
Available Packages
sddm-breeze.noarch             5.15.5-1.fc30              updates
sddm-kcm.x86_64                5.15.5-1.fc30              updates
sddm-themes.noarch             0.18.1-2.fc30              updates

Not an option.
I want to know where is stamped background picture at my current configuration.
Somewhere it must be.
And then to edit it.

What about these files?

ls /usr/share/sddm/themes/*/theme.conf

See also:

dnf -q provides "/usr/share/sddm/themes/*/theme.conf"

I repeat again: “at my current configuration”.
I want install nothing.
All I need is change background.

The default theme is Maui and the default background is bundled.

To change it, you need to override it with a new theme configuration:

sudo tee /usr/share/sddm/themes/THEME_NAME/theme.conf.user << "EOF"
[General]
background=/path/to/background.png
EOF

To keep the current theme, override the bundled one with this.

Maui don’t work for me.
I install Diamond SDDM Login Gen5 and got what I want.
Screen-2019-09-10_19-49-21

“This is the end, my friend” © James Douglas Morrison

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