Mars Finance News: According to The Block, Katana, a DeFi Ethereum scaling chain incubated by Polygon, announced the acquisition of IDEX, a decentralized exchange established in 2017. The transaction amount was not disclosed. IDEX will serve as the underlying infrastructure for Katana Perps, a newly launched perpetual futures platform that integrates spot liquidity, routing, and derivatives trading into a single on-chain environment, supported by market makers GSR, Selini Capital and