Text on Gray Background — White

1280 × 800

Warning Sign with Text — Gray, Serious

1680 × 1050

text-based joke image

960 × 854

Text on Black Background — Humorous, White

1366 × 768

Yellow Caution Sign — Warning, Vector Art

2000 × 1500

Warning Sign with Text — Yellow, Cautionary, Vector Art

2000 × 1400

Toxic waste warning sign

1920 × 1080

Zombie Warning Sign — White

2048 × 1152

404 Error Sign — Blue, Humorous, Vector Art, Warning Triangle

1920 × 1080

Warning Sign with Girl Icon — Blue

1600 × 900

Warning Sign with Text — Red

800 × 600

Warning Sign Bandana

900 × 873