{"machine":"lighten-darken","slot":"S90","title":"Lighten / darken color","how_to_call":"POST https://innernetcorp.com/machines/lighten-darken with Content-Type: application/json","price_usd":"$0.003","currencies":["USDC","EURC"],"payment":"x402: send the POST without payment to receive a 402 with signed requirements; pay any option and retry.","input_example":{"hex":"#FFB000","amount":-20},"input_schema":{"type":"object"},"summary":"Lighten or darken a hex color by a percentage; also generates a 5-step tint/shade scale.","catalog":"/catalog"}