Channel 5’s original logo, devised by Wolff Olins and Saatchi & Saatchi In its relatively brief history, the channel has undergone several makeovers: Wolff Olins and Saatchi & Saatchi devised its ...

The TIFF, PNG and WebP graphics formats support the 8-bit alpha channel, whereas JPEGs have none. GIF supports a 1-bit channel, which means that an area marked as alpha can be either transparent ...