/usr/share/backgrounds: Allow only images with full HD (1920x1080)
For the issue, see: mate-appearance-properties -p background: Do not disable Style, so the lock screen background always can be configured #718 - https://github.com/mate-desktop/mate-control-center/issues/718
Non-FHD (full HD) images:
- 1600x1200: /usr/share/backgrounds/dwyn.png
- 1600x1200: /usr/share/backgrounds/robur.png
- 1280x800: /usr/share/backgrounds/cosmos/comet.jpg
- 1280x800: /usr/share/backgrounds/cosmos/earth-horizon.jpg
- 1280x800: /usr/share/backgrounds/cosmos/jupiter.jpg
Suggestion 1: Remove them
Remove
- /usr/share/backgrounds/dwyn.png
- /usr/share/backgrounds/robur.png
Add a script to exclude these files from /usr/share/backgrounds/cosmos/ (that is copied from Ubuntu MATE)
- /usr/share/backgrounds/cosmos/comet.jpg
- /usr/share/backgrounds/cosmos/earth-horizon.jpg
- /usr/share/backgrounds/cosmos/jupiter.jpg
Suggestion 1: Resize them
Ideally to 5120x2880 to make like /usr/share/backgrounds/aramo.jpg, but at least 1920x1080.
Solution 2: Move all individual directories for with screen resolution names
See [Feature request] Create individual directories for with screen resolution names #41 for mate-desktop/mate-backgrounds