A spokeswoman for London's Tate Modern gallery said the gallery was "pleased" with today's court decision.
Wlodzimierz Umaniec has been jailed for two years for defacing a painting by artist Mark Rothko.
Tate is pleased that the court has recognised the severity of this incident and its consequences when sentencing Wlodzimierz Umaniec to two years in prison.
More top news
Theresa May and Jeremy Corbyn attempted to reshape the election debate as they faced public scrutiny on TV before a Jeremy Paxman grilling.
The new legislation will see the passports of convicted paedophiles cancelled in a bid to protect vulnerable children in south-east Asia.
The 90 competitors chosen to represent Britain in Toronto include more than 60% debutants.