Does R have an add-on to colorize scripts?

I am new to the R language, but not to the programming world. I have been using excellent code editors such as Notepad++ and Eclipse and, therefore, am used to colored codes.

Is there anything that can be done to colorize the scripts inside R?

I know I can use Notepad++; however, this will require going back and forth between the two software, which is not convenient.

Check out RStudio.