If you're preparing a website for a client it's the little touches like these that count. The following code will replace the default wp-admin.php
logo with one of your own choosing. If you're a control freak, this is just another means of branding your blog.
Copy and paste the WordPress function into your theme's functions.php
file or, if you sensibly have one installed, your custom functions plugin.
The size of your logo should be no bigger than 323 pixels wide by 67 pixels high. Adjust the above padding-bottom value to the spacing you want between your logo and the login form.
The above logo code doesn't remove the logo link to the WordPress website, nor does it remove the alt tag of "Powered by WordPress
". The following two functions will take care of that.
The first function will change the logo link.
The second function will customize the logo title and alt text.