Hi. I'm new to Sublime text, and using V2. I'm using the "IDLE" theme, but I would like to just tweak the color of the active tab (across the top of the window). I can't always easily tell which one is active because the colors are too similar. Only I can't seem to figure out which element of which file under the theme is the one to touch, and I can't find documentation on themes, or in fact where they are stored, beyond the "Theme - Default" dir and the Default.sublime-theme file under Packages... Anyone know how to tweak this? Is there any documentation?