For questions about the logos of Stack Exchange and its sites; their usage, design, display, etc...

This tag is for questions about the logos that are part of Stack Exchange's brand. Logos are used across the several sites of the network, and also outside the network when referring to it.

The most common logos can be obtained on Stacks under brand in the visuals section.

Several sites of the network have their own logos, a compilation can be seen in What does the logo of each Stack Exchange site represent?