For a thousand years Byzantine art continued to adhere to classical principles of design.

There was a set formula that included both art and architectural creations which kept the integrity of this style of art relatively unchanged over long periods of time

That is why it is considered a very conservative style as it did not allow for much variation as much of it had to fall within an acceptable standard for religious material

The Iconoclastic disruption caused considerable destruction of various murals and work containing icons, but once an understanding was reached, the art continued unabated