This is not fit-in-one-box insert. Fits Trade and Intrigue and Invasion expansions and should fit all promos and geek-up bits but not 5th player. This is TMG retail edition box. All pieces are stored in game box and boards and bags in Invasion expansion box.
Tile trays printed in different color to make more easily distinguishable. Clearance between tile trays and main tray is 0.25 mm - it should be tight fit and they shouldn't be removable (may have to file or sand out all blobs and imperfections).
Update 5/17/19 - I resized Base tile holder from 37 mm to 42 mm internal length and adjusted main tray appropriately.