"Headache Stencil", a graffiti artist, poses in front of his works during his "112 the Exhibition" at WTF Gallery and Cafe in Bangkok, Thailand, February 13, 2021. Picture taken February 13, 2021. REUTERS/Chalinee Thirasupa

A man attends "112 the Exhibition" by graffiti artist "Headache Stencil" at WTF Gallery and Cafe in Bangkok, Thailand, February 13, 2021. Picture taken February 13, 2021. REUTERS/Chalinee Thirasupa

A man flashes a three-finger salute as he stands in front of a painting by graffiti artist "Headache Stencil" in the "112 the Exhibition" at WTF Gallery and Cafe in Bangkok, Thailand, February 13, 2021. Picture taken February 13, 2021. REUTERS/Chalinee Thirasupa

"Headache Stencil", a graffiti artist poses in front of his works during his "112 the Exhibition" at WTF Gallery and Cafe in Bangkok, Thailand, February 13, 2021. Picture taken February 13, 2021. REUTERS/Chalinee Thirasupa

A man sticks stencils depicting victims of human rights abuse during recent protests against Chile's government, at Plaza Italia, now known as Plaza de la Dignidad (Dignity square), ahead of the one-year anniversary of the protests and riots that rocked in 2019, in Santiago, Chile, October 16, 2020. REUTERS/Ivan Alvarado

A person uses a stencil to paint a message reading "Long live the people" on the pavement during a Thai anti-government mass protest, on the 47th anniversary of the 1973 student uprising, near the Democracy monument, in Bangkok, Thailand October 14, 2020. REUTERS/Soe Zeya Tun

Headache Stencil, a graffiti artist poses in front of his works during his exhibition at The Foreign Correspondents' Club of Thailand (FCCT) in Bangkok, Thailand, July 31, 2020. Picture taken July 31, 2020. REUTERS/Chalinee Thirasupa

Headache Stencil, a graffiti artist poses in front of his works during his exhibition at The Foreign Correspondents' Club of Thailand (FCCT) in Bangkok, Thailand, July 31, 2020. Picture taken July 31, 2020. REUTERS/Chalinee Thirasupa

Headache Stencil, a graffiti artist poses in front of his works during his exhibition at The Foreign Correspondents' Club of Thailand (FCCT) in Bangkok, Thailand, July 31, 2020. Picture taken July 31, 2020. REUTERS/Chalinee Thirasupa

Headache Stencil, a graffiti artist poses in front of his works during his exhibition at The Foreign Correspondents' Club of Thailand (FCCT) in Bangkok, Thailand, July 31, 2020. Picture taken July 31, 2020. REUTERS/Chalinee Thirasupa

A woman takes photo of a painting by a graffiti artist Headache Stencil during his exhibition at The Foreign Correspondents' Club of Thailand (FCCT) in Bangkok, Thailand, July 31, 2020. Picture taken July 31, 2020. REUTERS/Chalinee Thirasupa

Headache Stencil, a graffiti artist poses in front of his works during his exhibition at The Foreign Correspondents' Club of Thailand (FCCT) in Bangkok, Thailand, July 31, 2020. Picture taken July 31, 2020. REUTERS/Chalinee Thirasupa

Headache Stencil, a graffiti artist signs autographs for a fan during his exhibition at The Foreign Correspondents' Club of Thailand (FCCT) in Bangkok, Thailand, July 31, 2020. Picture taken July 31, 2020. REUTERS/Chalinee Thirasupa

A worker sprays paint on a stencil indicating social distancing on the floor of a bus stop, as the spread of the coronavirus disease (COVID-19) continues, in San Jose, Costa Rica July 24, 2020. REUTERS/Juan Carlos Ulate

A worker sprays paint on a stencil indicating social distancing on the floor of a bus stop, as the spread of the coronavirus disease (COVID-19) continues, in San Jose, Costa Rica July 24, 2020. REUTERS/Juan Carlos Ulate

A worker sprays paint on a stencil indicating social distancing on the floor of a bus stop, as the spread of the coronavirus disease (COVID-19) continues, in San Jose, Costa Rica July 24, 2020. REUTERS/Juan Carlos Ulate

A worker sprays paint on a stencil indicating social distancing on the floor of a bus stop, as the spread of the coronavirus disease (COVID-19) continues, in San Jose, Costa Rica July 24, 2020. REUTERS/Juan Carlos Ulate

A woman sprays paint in the shape of a fist onto the shoulder of another woman using a cardboard stencil during a protest against the death of Elijah McClain and police injustice in Aurora, Colorado, U.S., June 27, 2020. REUTERS/Kevin Mohatt

A woman sprays paint in the shape of a fist onto the shoulder of another woman using a cardboard stencil during a protest against the death of Elijah McClain and police injustice in Aurora, Colorado, U.S., June 27, 2020. REUTERS/Kevin Mohatt TPX IMAGES OF THE DAY

A woman makes a t-shirt with supplies and stencils provided by Ariel Adkins of Artfully Awear at an event for people to make art to protest against police brutality and racial inequality in the aftermath of the death in Minneapolis police custody of George Floyd during the outbreak of the coronavirus disease (COVID-19) in Manhattan, New York, U.S., June 20, 2020. REUTERS/Caitlin Ochs

Black Lives Matter stencils adorn the outside walls of the Seattle Police Department's East Precinct as the protesters established what they call an autonomous zone while continuing to demonstrate against racial inequality and call for defunding of Seattle police, in Seattle, Washington, U.S. June 9, 2020. Picture taken June 9, 2020. REUTERS/Lindsey Wasson

A cyclist cycles by painted stencils on a street to create pop up bike lanes in preparation for distanced bike rides, following the outbreak of the coronavirus disease (COVID-19), London, Britain, May 16, 2020. REUTERS/Peter Nicholls

A cyclist cycles by painted stencils on a street to create pop up bike lanes in preparation for distanced bike rides, following the outbreak of the coronavirus disease (COVID-19), London, Britain, May 16, 2020. REUTERS/Peter Nicholls

A poster featuring the stencil of Bolivia's President Evo Morales reading 'Fraud' is pictured at the facilities of the state-run Bolivia TV and Radio Patria Nueva after being shut down by demonstrators during a protest against Morales' government in La Paz, Bolivia, November 9, 2019. REUTERS/Manuel Claure

A stencil of Bolivia's President Evo Morales is spray painted on the ground at the facilities of the state-run Bolivia TV and Radio Patria Nueva after being shut down by demonstrators during a protest against Morales' government in La Paz, Bolivia, November 9, 2019. REUTERS/Manuel Claure

Police officers stand guard in front of stencils depicting a skull as Colombia's former president and lawmaker Alvaro Uribe attends a private hearing at Supreme Court of Justice in Bogota, Colombia October 8, 2019. REUTERS/Luisa Gonzalez

Police officers detain Phil Kingston, 83, who sprayed a stencil slogan on the wall of the building housing the Treasury during the Extinction Rebellion protest in London, Britain October 7, 2019. REUTERS/Henry Nicholls

A stencil slogan sprayed by Phil Kingston, 83, is seen on the wall of the building housing the Treasury during the Extinction Rebellion protest in London, Britain October 7, 2019. REUTERS/Henry Nicholls

A police officer detains Phil Kingston, 83, who sprayed a stencil slogan on the wall of the building housing the Treasury during the Extinction Rebellion protest in London, Britain October 7, 2019. REUTERS/Henry Nicholls

Police officer detains Phil Kingston, 83, who sprayed a stencil slogan on the wall of the building housing the Treasury during the Extinction Rebellion protest in London, Britain October 7, 2019. REUTERS/Henry Nicholls

Police officer detains Phil Kingston, 83, who sprayed a stencil slogan on the wall of the building housing the Treasury during the Extinction Rebellion protest in London, Britain October 7, 2019. REUTERS/Henry Nicholls TPX IMAGES OF THE DAY

Phil Kingston, 83, sprays a stencil slogan on the wall of the building housing the Treasury during the Extinction Rebellion protest in London, Britain October 7, 2019. REUTERS/Henry Nicholls

A realtor stencils "for sale" on a house wall, as the city's residents struggle to live and obtain services in the old city of Mosul, Iraq June 30, 2019. Picture taken June 30, 2019. REUTERS/Abdullah Rashid

A stencil is sprayed on a t-shirt as demonstrators prepare for a "Fridays for Future" protest in Berlin, Germany, May 10, 2019. REUTERS/Annegret Hilse

Environmental activists stand with a stencil at the Grand Arche during a "civil disobedience action" to urge world leaders to act against climate change, in La Defense business district near Paris, France, April 19, 2019. The slogan reads "Macron, President of polluters". REUTERS/Benoit Tessier

Environmental activists stand with a stencil at the Grand Arche during a "civil disobedience action" to urge world leaders to act against climate change, in La Defense business district near Paris, France, April 19, 2019. The slogan reads "Macron, President of polluters". REUTERS/Benoit Tessier

A demonstrator spray paints stencils on Constitution Square during a march on International Women's Day in Mexico City, Mexico, March 8, 2019. REUTERS/Toya Sarno Jordan TPX IMAGES OF THE DAY

A demonstrator spray paints stencils on Constitution Square during a march on International Women's Day in Mexico City, Mexico, March 8, 2019. REUTERS/Toya Sarno Jordan

Stencilled names and messages of patrons who adopted refurbished flip-up seats from the former Golden Theatre are seen in independent cinema The Projector's Redrum ("red room") screening hall in Singapore, February 1, 2019. Picture taken February 1, 2019. REUTERS/Loriene Perera

People protesting against Nobel Peace Prize winner and former Costa Rican president Oscar Arias, who was accused of sexual assault, walk near stencils paint on the street saying "Rapist" in San Jose, Costa Rica February 8, 2019. The sign read "Oscar Arias, rapist" REUTERS/Juan Carlos Ulate

People protesting against Nobel Peace Prize winner and former Costa Rican president Oscar Arias, who was accused of sexual assault, walk near stencils paint on the street saying "Rapist" in San Jose, Costa Rica February 8, 2019. The sign reads "Oscar Arias, rapist" REUTERS/Juan Carlos Ulate

Name of the Spanish right-wing party VOX is sprayed over the graffiti stencil reading "Independence" on sidewalk in Barcelona, Spain, December 12, 2018. REUTERS/Albert Gea

Name of the Spanish right-wing party VOX is sprayed over the graffiti stencil reading "Independence" on sidewalk in Barcelona, Spain, December 12, 2018. REUTERS/Albert Gea

Stencils used to the mark floor are picutred at a wool storage facility in Sydney, Australia September 20, 2018. Picture taken September 20, 2018 REUTERS/Jonathan Barrett

A stencil that reads "No to water privatization" is seen on a billboard during a demonstration against water privatization in San Salvador, El Salvador, August 30, 2018. REUTERS/Jose Cabezas

Laser-cut stencils are seen at Inkbox, a temporary tattoo start-up, at their offices in Toronto, Ontario, Canada July 17, 2018. REUTERS/Chris Helgren

A person sprays a stencil on a cotton bag during an anti-AfD protest, ahead of a two-day party congress in Augsburg, Germany, June 29, 2018. REUTERS/Wolfgang Rattay

A person sprays a stencil on a cotton bag during an anti-AfD protest, ahead of a two-day party congress in Augsburg, Germany, June 29, 2018. REUTERS/Wolfgang Rattay

Members of Reporters Without Borders (RSF) hold stencils made by French street artist C215 representing portraits of emprisonned Turkish journalists, as they take part in a demonstration in front of the Turkish embassy in Paris, France, January 5, 2018. REUTERS/Benoit Tessier TPX IMAGES OF THE DAY

Members of Reporters Without Borders (RSF) hold stencils made by French street artist C215 representing portraits of emprisonned Turkish journalists, as they take part in a demonstration in front of the Turkish embassy in Paris, France, January 5, 2018. REUTERS/Benoit Tessier

Members of Reporters Without Borders (RSF) hold stencils made by French street artist C215 representing portraits of emprisonned Turkish journalists, as they take part in a demonstration in front of the Turkish embassy in Paris, France, January 5, 2018. REUTERS/Benoit Tessier

Members of Reporters Without Borders (RSF) hold stencils made by French street artist C215 representing portraits of emprisonned Turkish journalists, as they take part in a demonstration in front of the Turkish embassy in Paris, France, January 5, 2018. REUTERS/Benoit Tessier

Members of Reporters Without Borders (RSF) hold stencils made by French street artist C215 representing portraits of emprisonned Turkish journalists, as they take part in a demonstration in front of the Turkish embassy in Paris, France, January 5, 2018. REUTERS/Benoit Tessier

Members of Reporters Without Borders (RSF) hold stencils made by French street artist C215 representing portraits of emprisonned Turkish journalists, as they take part in a demonstration in front of the Turkish embassy in Paris, France, January 5, 2018. REUTERS/Benoit Tessier

Members of Reporters Without Borders (RSF) hold stencils made by French street artist C215 representing portraits of emprisonned Turkish journalists, as they take part in a demonstration in front of the Turkish embassy in Paris, France, January 5, 2018. REUTERS/Benoit Tessier

Thirteen-year-old Nizhoni Stencil, who is Navajo, and twelve-year-old Tasia Pecos, who is Jemez, prepare for the Grand Entry on the opening night of the 32nd Annual Taos Pueblo Pow Wow, a Native American dance competition and social gathering, in Taos, New Mexico, U.S., July 7, 2017. Picture taken July 7, 2017. REUTERS/Brian Snyder

An employee takes a stencil plate during the production of traffic signs at a factory of KrasDorZnak, a trading industrial company, in the Siberian village of Voznesenka, in the Beryozovsky district of Krasnoyarsk region, Russia July 4, 2016. Picture taken July 4, 2016. REUTERS/Ilya Naymushin

A tattoo artist works on a stencil of his client during the Nepal Tattoo Convention in Kathmandu, Nepal, April 1, 2016. REUTERS/Navesh Chitrakar

A stencil is pictured in a flowerbed next to the headquarters of the European Central Bank (ECB) in Frankfurt, Germany, March 26, 2016. REUTERS/Ralph Orlowski

A stencil is seen near the headquarters of the European Central Bank (ECB) in Frankfurt, Germany, March 26, 2016. Picture taken with fish-eye lens. REUTERS/Ralph Orlowski