message: chore(viewer): leaves more breathing and thinking room
diff: "sourceMap": true,
  "isolatedModules": true,
  "esModuleInterop": true,
  - "noUnusedLocals": true,
  + "noUnusedLocals": false,
  "noUnusedParameters": false,
  "noImplicitReturns": false,
  "skipLibCheck": true,
  