{"id":"screen-ppi-calculator","engine":"core","category":"math","name":"Screen pixel density","fields":[{"key":"width","label":"Pixel width","type":"number","default":1920,"required":true,"min":1},{"key":"height","label":"Pixel height","type":"number","default":1080,"required":true,"min":1},{"key":"diagonal","label":"Diagonal size (inches)","type":"number","default":24,"required":true,"min":0.000001}],"sample":{"width":1920,"height":1080,"diagonal":24}}