The plugin automates the process, without any configuration from the admin.
Unpack and upload it to the /wp-content/plugins/ directory.
Activate the plugin through the 'Plugins' menu in WordPress.
Drop a PNG file named login-logo.png into the wp-content directory.
Here are some key features of "Login Logo":
- Zero configuration.
- Transparent backgrounds work best.
- Keep the width below 326 pixels.
- Support for WordPress 3.4
- Changed the ideal image width to 312 pixels, and instituted a tighter crop policy.