With 11 months to go until Crossrail officially launches, the official roundels are already being installed at stations across the network.
Tottenham Court Road, Farringdon and Custom House are some of the stations which have already received the purple treatment.
Don't get too excited though — you won't be able to get a glimpse of them in the purple flesh until the Crossrail stations and platforms officially open in December.
New photos released by TfL show the signs being manufactured and installed, along with wayfinder signs which will help passengers navigate around the new stations.
Val Shawcross, Deputy Mayor for Transport, said:
The Elizabeth Line will truly transform travel across London and the south east. The installation of the roundels incorporating TfL's iconic design shows how close we are now to the line opening, with new stations right at the heart of central London.