Transparency

With PNG images, a color in the palette can be designated as "transparent". This lets any background colors or background images show through the transparent portions.

star
Star Image

satin
Background Image
(satin.png)

FormatBackground Color
(gray)
Background Image
satin.png
GIF
No transparency
starstar
GIF
White is transparent
starstar
GIF
Blue is transparent
starstar
PNG
No transparency
starstar
PNG
White is transparent
starstar
PNG
Blue is transparent
starstar

Copyright © David Heitmeyer