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Visually they are very different - since the arrows in finder is outside the list. Whatever the techincal implementation - the finder UI is much easier to read as the names of folder and files all line up - as oppose to Sublime where the files jump to the left - making it harder for the eye to scan and build a cognitive hierarcy.

 

Where is this "Project Tree"? I was about to suggest a feature to organize project files - by the sound of it it's there? But I can't find it - I must be missing something obious.