No, Russian cosmonauts were not making a pro-Ukraine statement with their spacesuits

A NASA astronaut who just returned from the International Space Station says his Russian counterparts who boarded the ISS wearing yellow and blue spacesuits were not doing so to support Ukraine. Mark Vande Hei, who returned to Earth on March 30 after nearly a year in space, said the yellow and blue colors represent the university the Russian cosmonauts attended. More

(Source: NPR - Apr 7)