xscreensaver lock window themes 1.1

xscreensaver lock window themes is a replacement for ugly password lock window.
XScreenSaver is a ubiquitous program on Unix for preventing the pixels of your monitor from burning in, providing pretty animations and providing password protection. However, the default lock window used for password protection is bloody ugly.
The author of XScreenSaver has an explanation on why toolkits like GTK and QT are not used for the lock window and Id agree with his points. However, why not have a built-in theme that is secure?
So what Im providing here is a framework for creating built-in themes. (Note that themes are not run time changeable - only one can be included at any time.) The default theme is shown the above screenshot and other themes are available in the themes page. Creating a new theme requires some graphical talent (of which I have none) for the frame and logo and some programming experience if you wish to adjust the interior. Please feel free to submit themes and I will include them on the theme page.z
Enhancements:
- Version 1.1 patches XScreenSaver 4.22 and perhaps newer versions. (One easily fixable hunk failure against 4.21.)