Newbie Help Needed

Erm I may be wrong but if you are just trying to change themes why not just get a launcher? Apex or Nova launchers are pretty good and again I have no idea what your question is I'm just ranting on because you mentioned themes so hope I helped.

Sorry, I can't help you. I had this problem until my desire for heavy theming went away.

This is a very relaxed (if wonderfully heavily moderated) forum. What they don't do is get pissy about details, so I am taking it on myself to get that way with one detail that forums often get cross about: the post's Title. Try to keep it relevant to the details of the query. 'Can't get themes to work' or some such would have been far more helpful. Most readers just pass over posts with uninformative titles.

Someone is bound to help you here, but more so with a clearer title!

You need themes that are compatible with the rom not all roms have any decent themes, but you did the right thing rooting try the dre beats audio app

Don't know any possible solution. Let's just wait and see if other forum members have something useful for you.

Themes really depend on your ROM. Do you have a custom ROM installed, or do you just have root? You'll need to install a custom recovery (my current favorite is TWRP, but CWM is the most common, I think). After that you can install a custom ROM if you want to change themes, and even then the appearance and theme compatibility will depend on what ROM you have

I'd advise using Eclipse if you want a good custom interface. I don't know how themes work on the stock Galaxy S3, but you might also try downloading ROM Toolbox (just keep in mind that it's a very powerful app that can easily destroy your phone if you do anything foolish).

Casual is a great way to get a custom recovery installed, and it's Java based, so it works on any operating system, Mac or Windows. You can get it at XDA Developers (I can't post links yet, so just do a Google search for Galaxy S3 Casual)

--Joel