Activists demonstrate as they wear white, the colour worn by prisoners in solidarity with political prisoners and embattled civil society at the Sharm El Sheikh International Convention Centre, during the COP27 climate summit, in Sharm el-Sheikh, Egypt, November 10, 2022.REUTERS/Mohammed Salem 

Activists demonstrate as they wear white, the colour worn by prisoners in solidarity with political prisoners and embattled civil society at the Sharm El Sheikh International Convention Centre, during the COP27 climate summit, in Sharm el-Sheikh, Egypt, November 10, 2022.REUTERS/Mohammed Salem 

A view of a person holding white-coloured clothes following a landslide due to heavy rains, in Las Tejerias, Aragua state, Venezuela October 10, 2022. REUTERS/Leonardo Fernandez Viloria 

People queue to the final rehearsal of Trooping of Colour before the Queen's Platinum Jubilee celebrations in London, Britain, May 21, 2022. REUTERS/May James 

Television host Jimmy Fallon walks past trays of coloured Easter eggs at the annual Easter Egg Roll on the South Lawn of the White House in Washington, U.S. April 18, 2022. REUTERS/Jonathan Ernst 

Trays of coloured Easter eggs are displayed during the annual Easter Egg Roll on the South Lawn of the White House in Washington, U.S. April 18, 2022. REUTERS/Jonathan Ernst 

A worker carries a ballot box as he walks past a voting booth in the colours of the French flag, blue, white and red, during preparations at the polling station for the upcoming presidential election, in Le Touquet-Paris-Plage, France April 6, 2022. REUTERS/Pascal Rossignol 

A worker cleans the floor next to a voting booth in the colours of the French flag, blue, white and red, as he prepares the polling station for the upcoming presidential election, in Le Touquet-Paris-Plage, France April 6, 2022. REUTERS/Pascal Rossignol 

A worker carries a ballot box as he walks past a voting booth in the colours of the French flag, blue, white and red, during preparations at the polling station for the upcoming presidential election, in Le Touquet-Paris-Plage, France April 6, 2022. REUTERS/Pascal Rossignol 

A worker prepares a voting booth in the colours of the French flag, blue, white and red, as he prepares the polling station for the upcoming presidential election, in Le Touquet-Paris-Plage, France April 6, 2022. REUTERS/Pascal Rossignol 

A woman carries a sign featuring a white dove and the colours of the Ukrainian flag as she takes part in an anti-war demonstration "Stop the War. Peace and Solidarity for the People in Ukraine", to protest against Russia's invasion of Ukraine, in Berlin, Germany, March 13, 2022. REUTERS/Lisi Niesner 

People carry placards featuring white doves and the colours of the Ukrainian flag during an anti-war demonstration "Stop the War. Peace and Solidarity for the People in Ukraine", to protest against Russia's invasion of Ukraine, on the Strasse des 17. Juni, near the Brandenburg Gate, in Berlin, Germany, March 13, 2022. REUTERS/Lisi Niesner 

Bulgarian Muslim bride Kimile Avdinova and her groom Kadri Kichukov pose in front of their dowry during their wedding ceremony in the village of Ribnovo, in the Rhodope Mountains, Bulgaria, January 2, 2022. The remote mountain village of Ribnovo in southwest Bulgaria has kept its traditional winter marriage ceremony alive despite decades of Communist persecution, followed by poverty that forced many men to seek work abroad. The wedding ritual was resurrected with vigour among the Pomaks - Slavs who converted to Islam under Ottoman rule. The highlight of the ceremony is the painting of the bride's face, where in a private rite open only to female in-laws, her face is covered in thick, chalky white paint and decorated with colourful sequins. Picture taken January 2, 2022. REUTERS/Stoyan Nenov 

Bulgarian Muslim women look at the dowry for the wedding ceremony of Kimile Avdinova and her groom Kadri Kichukov in the village of Ribnovo, in the Rhodope Mountains, Bulgaria, January 2, 2022. The remote mountain village of Ribnovo in southwest Bulgaria has kept its traditional winter marriage ceremony alive despite decades of Communist persecution, followed by poverty that forced many men to seek work abroad. The wedding ritual was resurrected with vigour among the Pomaks - Slavs who converted to Islam under Ottoman rule. The highlight of the ceremony is the painting of the bride's face, where in a private rite open only to female in-laws, her face is covered in thick, chalky white paint and decorated with colourful sequins. Picture taken January 2, 2022. REUTERS/Stoyan Nenov 

Bulgarian Muslim women look at the dowry for the wedding ceremony of Kimile Avdinova and her groom Kadri Kichukov in the village of Ribnovo, in the Rhodope Mountains, Bulgaria, January 2, 2022. The remote mountain village of Ribnovo in southwest Bulgaria has kept its traditional winter marriage ceremony alive despite decades of Communist persecution, followed by poverty that forced many men to seek work abroad. The wedding ritual was resurrected with vigour among the Pomaks - Slavs who converted to Islam under Ottoman rule. The highlight of the ceremony is the painting of the bride's face, where in a private rite open only to female in-laws, her face is covered in thick, chalky white paint and decorated with colourful sequins. Picture taken January 2, 2022. REUTERS/Stoyan Nenov 

Bulgarian Muslim women watch as guests dance at the wedding ceremony of Kimile Avdinova and her groom Kadri Kichukov in the village of Ribnovo, in the Rhodope Mountains, Bulgaria, January 2, 2022. The remote mountain village of Ribnovo in southwest Bulgaria has kept its traditional winter marriage ceremony alive despite decades of Communist persecution, followed by poverty that forced many men to seek work abroad. The wedding ritual was resurrected with vigour among the Pomaks - Slavs who converted to Islam under Ottoman rule. The highlight of the ceremony is the painting of the bride's face, where in a private rite open only to female in-laws, her face is covered in thick, chalky white paint and decorated with colourful sequins. Picture taken January 2, 2022. REUTERS/Stoyan Nenov 

Bulgarian Muslim bride Kimile Avdinova has make-up applied to her face during her wedding ceremony in the village of Ribnovo, in the Rhodope Mountains, Bulgaria, January 2, 2022. The remote mountain village of Ribnovo in southwest Bulgaria has kept its traditional winter marriage ceremony alive despite decades of Communist persecution, followed by poverty that forced many men to seek work abroad. The wedding ritual was resurrected with vigour among the Pomaks - Slavs who converted to Islam under Ottoman rule. The highlight of the ceremony is the painting of the bride's face, where in a private rite open only to female in-laws, her face is covered in thick, chalky white paint and decorated with colourful sequins. Picture taken January 2, 2022. REUTERS/Stoyan Nenov 

Bulgarian Muslim bride Kimile Avdinova and her groom Kadri Kichukov walk outside her house during their wedding ceremony in the village of Ribnovo, in the Rhodope Mountains, Bulgaria, January 2, 2022. The remote mountain village of Ribnovo in southwest Bulgaria has kept its traditional winter marriage ceremony alive despite decades of Communist persecution, followed by poverty that forced many men to seek work abroad. The wedding ritual was resurrected with vigour among the Pomaks - Slavs who converted to Islam under Ottoman rule. The highlight of the ceremony is the painting of the bride's face, where in a private rite open only to female in-laws, her face is covered in thick, chalky white paint and decorated with colourful sequins. Picture taken January 2, 2022. REUTERS/Stoyan Nenov 

Bulgarian Muslim bride Kimile Avdinova and her groom Kadri Kichukov welcome guests during their wedding ceremony in the village of Ribnovo, in the Rhodope Mountains, Bulgaria, January 2, 2022. The remote mountain village of Ribnovo in southwest Bulgaria has kept its traditional winter marriage ceremony alive despite decades of Communist persecution, followed by poverty that forced many men to seek work abroad. The wedding ritual was resurrected with vigour among the Pomaks - Slavs who converted to Islam under Ottoman rule. The highlight of the ceremony is the painting of the bride's face, where in a private rite open only to female in-laws, her face is covered in thick, chalky white paint and decorated with colourful sequins. Picture taken January 2, 2022. REUTERS/Stoyan Nenov 

Bulgarian Muslim bride Kimile Avdinova dances during her wedding ceremony in the village of Ribnovo, in the Rhodope Mountains, Bulgaria, January 2, 2022. The remote mountain village of Ribnovo in southwest Bulgaria has kept its traditional winter marriage ceremony alive despite decades of Communist persecution, followed by poverty that forced many men to seek work abroad. The wedding ritual was resurrected with vigour among the Pomaks - Slavs who converted to Islam under Ottoman rule. The highlight of the ceremony is the painting of the bride's face, where in a private rite open only to female in-laws, her face is covered in thick, chalky white paint and decorated with colourful sequins. Picture taken January 2, 2022. REUTERS/Stoyan Nenov 

Bulgarian Muslim bride Kimile Avdinova has make-up applied to her face during her wedding ceremony in the village of Ribnovo, in the Rhodope Mountains, Bulgaria, January 2, 2022. The remote mountain village of Ribnovo in southwest Bulgaria has kept its traditional winter marriage ceremony alive despite decades of Communist persecution, followed by poverty that forced many men to seek work abroad. The wedding ritual was resurrected with vigour among the Pomaks - Slavs who converted to Islam under Ottoman rule. The highlight of the ceremony is the painting of the bride's face, where in a private rite open only to female in-laws, her face is covered in thick, chalky white paint and decorated with colourful sequins. Picture taken January 2, 2022. REUTERS/Stoyan Nenov 

Bulgarian Muslim bride Kimile Avdinova has makeup applied to her face during her wedding ceremony in the village of Ribnovo, in the Rhodope Mountains, Bulgaria, January 2, 2022. The remote mountain village of Ribnovo in southwest Bulgaria has kept its traditional winter marriage ceremony alive despite decades of Communist persecution, followed by poverty that forced many men to seek work abroad. The wedding ritual was resurrected with vigour among the Pomaks - Slavs who converted to Islam under Ottoman rule. The highlight of the ceremony is the painting of the bride's face, where in a private rite open only to female in-laws, her face is covered in thick, chalky white paint and decorated with colourful sequins. Picture taken January 2, 2022. REUTERS/Stoyan Nenov TPX IMAGES OF THE DAY 

Bulgarian Muslim bride Kimile Avdinova dances next to her groom Kadri Kichukov during their wedding ceremony in the village of Ribnovo, in the Rhodope Mountains, Bulgaria, January 2, 2022. The remote mountain village of Ribnovo in southwest Bulgaria has kept its traditional winter marriage ceremony alive despite decades of Communist persecution, followed by poverty that forced many men to seek work abroad. The wedding ritual was resurrected with vigour among the Pomaks - Slavs who converted to Islam under Ottoman rule. The highlight of the ceremony is the painting of the bride's face, where in a private rite open only to female in-laws, her face is covered in thick, chalky white paint and decorated with colourful sequins. Picture taken January 2, 2022. REUTERS/Stoyan Nenov 

Bulgarian Muslim bride Kimile Avdinova has make-up applied to her face during her wedding ceremony in the village of Ribnovo, in the Rhodope Mountains, Bulgaria, January 2, 2022. The remote mountain village of Ribnovo in southwest Bulgaria has kept its traditional winter marriage ceremony alive despite decades of Communist persecution, followed by poverty that forced many men to seek work abroad. The wedding ritual was resurrected with vigour among the Pomaks - Slavs who converted to Islam under Ottoman rule. The highlight of the ceremony is the painting of the bride's face, where in a private rite open only to female in-laws, her face is covered in thick, chalky white paint and decorated with colourful sequins. Picture taken January 2, 2022. REUTERS/Stoyan Nenov 

Festival crew members throw white powder on crowd at the Tripoli color festival, in Tripoli, northern Lebanon, October 10, 2021. Picture taken October 10, 2021. REUTERS/Mohamed Azakir 

Festival crew members throw white powder on crowd at the Tripoli color festival, in Tripoli, northern Lebanon, October 10, 2021. Picture taken October 10, 2021. REUTERS/Mohamed Azakir 

People daubed in white powder gesture as they take part in the Tripoli color festival, in Tripoli, northern Lebanon, October 10, 2021. Picture taken October 10, 2021. REUTERS/Mohamed Azakir 

Event organizer, Bilal Aljamal, daubed in white powder, reacts during the Tripoli color festival, in Tripoli, northern Lebanon, October 10, 2021. Picture taken October 10, 2021. REUTERS/Mohamed Azakir 

People daubed in white powder react as they take part in the Tripoli color festival, in Tripoli, northern Lebanon, October 10, 2021. Picture taken October 10, 2021. REUTERS/Mohamed Azakir 

People daubed in white powder react as they take part in the Tripoli color festival, in Tripoli, northern Lebanon, October 10, 2021. Picture taken October 10, 2021. REUTERS/Mohamed Azakir 

A confectioner paints green coloured liquid white chocolate around an Easter bunny during production at Eric's Confiserie Baumann in Zurich, Switzerland, March 11, 2021. Picture taken March 11, 2021. REUTERS/Arnd Wiegmann 

Easter bunnies decorated with green coloured white chocolate are seen during production at Eric's Confiserie Baumann in Zurich, Switzerland March 11, 2021. Picture taken March 11, 2021. REUTERS/Arnd Wiegmann 

Bavarian federal state premier Markus Soeder attends a cabinet meeting with a blue-white coloured mask of the Bavarian flag in Munich, Germany, October 27, 2020. Peter Kneffel/Pool via REUTERS 

Performers dressed in clothes in the colours of the historical white-red-white flag of Belarus are seen during a protest against the presidential election results demanding the resignation of Belarusian President Alexander Lukashenko and the release of political prisoners, near the Government House in Independence Square in Minsk, Belarus August 16, 2020. REUTERS/Vasily Fedosenko 

Performers dressed in clothes in the colours of the historical white-red-white flag of Belarus are seen during a protest against the presidential election results demanding the resignation of Belarusian President Alexander Lukashenko and the release of political prisoners, near the Government House in Independence Square in Minsk, Belarus August 16, 2020. REUTERS/Vasily Fedosenko 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he gestures while speaking with schoolchildren during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as speaks with schoolchildren during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he speaks with schoolchildren next to Mayor of Poissy Karl Olive in a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he stands next to Mayor of Poissy Karl Olive in a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he speaks with schoolchildren during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he arrives to speak with schoolchildren during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as speaks with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he arrives to speak with schoolchildren during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he arrives to speak with schoolchildren during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he arrives to speak with schoolchildren during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he gestures while speaking with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wearing a protective face mask with a blue-white-red coloured ribbon gestures while speaking with schoolchildren in a classroom during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS TPX IMAGES OF THE DAY 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he gestures while speaking with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he gestures while speaking with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as speaks with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he gestures while speaking with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he gestures while speaking with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he speaks with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he speaks with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he speaks with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he gestures while speaking with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

France's President Emmanuel Macron wears a protective face mask with a blue-white-red coloured ribbon as he speaks with schoolchildren during a class during a visit to the Pierre de Ronsard elementary school in Poissy, France, May 5, 2020, as France readies to face an ease in the coronavirus lockdown measures. Ian Langsdon/Pool via REUTERS 

Snow falls in a nearly empty parking lot as the spread of the coronavirus disease (COVID-19) continues, at a hotel in West Vail, Colorado, U.S., April 12, 2020. REUTERS/Shannon Stapleton 

A stack of newspapers near Bixton Station, as the spread of the coronavirus disease (COVID-19) continues, London, Britain, April 3, 2020. REUTERS/Hannah McKay