Restoration began with replacing the roofing of the domes. Solovyov removed the tin roofing of the main tent installed in the 1810s and found many original tiles missing and others discoloured; after a protracted debate the whole set of tiles on the tented roof was replaced with new ones. Another dubious decision allowed the use of standard bricks that were smaller than the original 16th-century ones. Restorers agreed that the paintwork of the 19th century must be replaced with a "truthful recreation" of historic patterns, but these had to be reconstructed and deduced based on medieval miniatures. In the end, Solovyov and his advisers chose a combination of deep red with deep green that is retained to the present.