(1) Slang for investing in or being dedicated to Bitcoin. The Bitcoin logo is orange, and the pill metaphor comes from medicine bottles tinted orange to prevent light from degrading the content. See
crypto glossary and
Bitcoin.
(2) Slang for investing in intelligent urban design. In this case, the orange comes from the color of the flag of the Netherlands, because Dutch cities promote bicycles and mopeds for daily commuting to alleviate pollution from automobiles.