Kubuntu desktop background

1024 × 768

Ubuntu logo on purple background

1024 × 640

Ubuntu logo on purple background

1920 × 1080

Ubuntu 11.04 logo on purple background

1280 × 1024

Linux Mint logo on dark background

2560 × 1600

Debian desktop background

2560 × 1600

GNOME desktop logo

1024 × 768

Kubuntu desktop background

1920 × 1200

LMDE Linux Mint Debian Edition

1600 × 1050

Linux welcome screen

1920 × 1200

Ubuntu logo on blue background

1920 × 1080

Ubuntu logo on black background

1600 × 1200