Miniatures either illustrated books or were single works for muraqqas or albums of painting and Islamic calligraphy. The style gradually spread in the next two centuries to influence painting on paper in both Muslim and Hindu princely courts, developing into a number of regional styles often called "sub-Mughal", including Rajput painting, Pahari painting, and finally Company painting, a hybrid watercolour style influenced by European art and largely patronized by the people of the British raj. In "pahari" ("mountain") centres like that of Kangra painting the style remained vital and continued to develop into the early decades of the 19th century. From the mid-19th century Western-style easel paintings became increasingly painted by Indian artists trained in Government art schools.