This is just a small shell script that I wrote. I am not a coder, so this is just learning baby steps for me.
Sorry that TMO will not accept attachments with .sh extension. So i have zipped it. Please unzip and run. Or should I have renamed it as txt?

So, usage:
Important:

• It has to be run as root.
• Unzip has to be installed from repos

Other options possible are 'restore' and 'backup'. For example,
would create a backup file of your present files for posterity. They can then be restored with 'restore'

I know that this can only save at the most a few seconds. But, with what knowledge I have, I am now working on a script to modify the themes as we require, without installing themes. Wish me luck!