The fresco has a grand scale of capacity, which deals with a wide range of religion, politics, history, economy, culture, Tibetan medicine and social life, etc. It all emcompasses varied contents from Buddhist inscription, religious doctrine, mythology, legend, historical story, living scene to the landscapes of mountain and river or plume with birds and flower and picture's decoration etc.
   The drawing style of the frescos is so particular that its colors are inclined too cold, dark. The colors chiefly consist of deep blue, purple, gray, earthly yellow and white. Mainly lines and traces in white depict it. The coloring is applied to be simply, bold or leave empty and blank. The fresco is not only provided with artistic effects and unified with the palace’s harmonized atmosphere, but also the artistic image of exaggeration, the vivid and vigorous expression or the strongly unsophisticated flavor of decoration.