Maria sent me this card from Yaroslavl with St. John the Baptist Church and gave me some information about orthodox churches colors. Golden if devoted to Jesus Christ or Great Feasts; blue with golden stars for Mary; green for the Holy Spirit or some holy men and black for monks, which means that there are relics inside.
RU-6527396, sent by Maria.
St. John the Baptist Church in Yaroslavl is considered to be the acme of the Yaroslavl school of architecture. It was built in 1671-1687 on the bank of Kotorosl river in the Tolchkovo sloboda (district) which at that time was the largest and wealthiest part of the town.
Its walls and dome drums are covered with richly glazed tiles; the temple's fifteen onion domes are assembled in three groups. The 7-storey, 45-metre high bell-tower was built later than the church itself in mid-1690s.
The entire interior is covered with frescoes depicting Christian saints, St. John the Baptist hagiography and biblical topics. They were painted by Dmitry Plekhanov and Fyodor Ignatyev in 1694-1695. - in: wikipedia