Perhaps this problem is a side-effect of a package control bug which disabled installed packages, including any custom theme you might have installed. I saw something similar a few weeks back and use the Soda theme.
Check the following:
- "ignored_packages" in your user settings file. In the settings same file, "theme" refers to the theme you have installed.
- If the "theme" you're using was installed through package control, and is now in the "ignored_packages" list, you'll see sublime mess up just like in the OP's bitmap
If the above is the case, just remove the theme package from "ignored_packages", save and restart sublime.
If this doesn't work, go back to the default Sublime theme simply by deleting the "theme" key.