The Jersey of Barcelona

Today I researched about the Jersey of Barcelona. Since the founding of the club, Barcelona has never worn corporate advertisements on their shirt. In 2006, Barcelona announced a five year agreement with UNICEF, which includes wearing the Unicef logo on their shirt. In 2011, Barcelona signed a 150 euro contract with Qatar Foundations. Since then, the Qatar Foundations logo is on the front of the shirt, and the UNICEF logo is at the back.
The colors of Barcelona is blue and red. This was always and will be always the first set of colors for Barcelona.