When I became aware of Sublime, I noticed the benefits of dark themes to your workspace. But since Sublime doesn't have support for Grails at the moment, I search for ways to theme STS or SpringSource Tool Suite and I reached to this article. I tried the plugin and it worked well. Unfortunately, only the Editor area was change by the plugin.
The question is how I change the Color and Fonts
of the whole STS or Eclipse?
Go to Windows->Preferences->General->Appearance->Select the theme you want.