The self-described “Punjabi Scouser” artist’s colourful neon works raise a smile, but with themes of feminism, racism and colonialism there is a serious intent to her art

From Chila Kumari Singh Burman's eye-popping Tate Winter Commission to Lucy McKenzie's tube station takeover

The key figure in the British Black Arts movement of the 1980s has adorned the London museum’s façade with a colourful work exploring her own background