Windows logo on sky background

1280 × 720

Macintosh logo on sky background

1024 × 768

Gnome logo on sky background

1600 × 1200

Windows logo on sky background

2560 × 1600

Ubuntu logo on sky background

1600 × 1200

Ubuntu Logo on Green Background — Calm

1920 × 1200

Ubuntu Logo on Blue Background — Calm, Digital Art

1920 × 1200

Ubuntu logo on fiery background

1600 × 1200

Ubuntu logo on dark background

1280 × 800

Blue sky with O2 logo

1600 × 1000

ASUS Logo over Clouds

1920 × 1080

Apple logo on clouds

2560 × 1024