Ability to Brand the Login Page

I would like to see the ability to brand the Cpanel login page without having to go through the hassle of downloading a current theme, making the changes to the images etc then tar the theme ball file and ssh it to the server. If you can brand the the other parts of the Cpanel themes in Whm why not the login page it doesn't make any sense.

 

Thanks for your reply. I know that you have the option to create a new login theme using the technique you describe. I want to be able to do everything with windows 7 however as my technical skills are poor. Which is why being able to do it right inside of WHM would be the way to go.

I cannot figure out how to create a tar.gz file after downloading the cpanel theme and just changing the images. I have tried googling for answers and come up with various scripts like 7zip etc but not much in the way of documentation on how to take the newly created cpanel directory and turn it into a tar.gz file. If I could figure out how to do that I could then use the upload feature in the Main >> Themes >> Universal Theme Manager >>Manage Login Themes section.