Your comments

As you can see on the transmit and transmitEffects we can see a minimap of the code. It helps switching over files on larger projects.

The minimap helps the user to find where his code is located in the file. A minimap  in the tabs could help the user find what file he wants to edit easier.

Looking at an image is always easier to identify than looking at a filename.

Wow, I don't know what happend but some of the text is gone..

Basically, I was speaking about adding a preview in the tabs. Something like the minimap that ST already offers, but in the tab. I'm not talking about some HTML preview.