Pierre Bonnard is largely regarded as a painter’s painter. The French post-impressionist might not be as well-known as his great friend Henri Matisse, but he shared a similar mastery of colour, which brought domestic interiors, portraits and luscious landscapes to life. In the biggest UK show to be mounted in 20 years, Tate Modern brings together masterpieces and lesser-known works alike. Here are some of the finest examples, which offer a window into Bonnard’s world