You can re-install a chrome theme from the chrome store. The theme you selected would always be there.
There are a number of themes for chrome too. A theme can be downloaded from Chrome store.
There is an addon by Creative Tools called "My Chrome Theme". Download this and you can customize from there.
IE can't pevent Chrome from anything as it doesn't have such feature...
I'm sorry but you are going to have to be more specific by where do.
yes
You can always select the theme which suits you best. All themes are kept keeping the chrome's size in mind.
Google Docs could not be working due to some Internet issue. You can always try and reinstall chrome.
Uninstall Chrome, scan your computer with anti-virus, and make sure your source of downloading Chrome is from the related link below before you reinstall it.
Chromed can be easily painted in themes. The themes are located in the Chrome web store.
There is no difference.
You cannot delete a theme off the Chrome Web Store unless you are the owner.
Restoring earlier tabs could be easily done by History. History store all the tabs that were opened in Chrome.