{"version":"1.0","type":"rich","title":"Difference Chart v4","description":"This chart compares daily average temperatures in New York and San Francisco over four months. It uses a bivariate area chart with clipping to alternate colors: the area where New York is warmer than San Francisco is filled in green, while the area where San Francisco is warmer is filled in red. The SVG visualization is built with D3 v4, using a clipped area path to switch fill colors based on the sign of the temperature difference, a technique with roots in William Playfair’s 1786 work. The data is loaded from a TSV file with date, New York, and San Francisco temperature columns.","provider_name":"VizHub AI Studio","provider_url":"https://next.vizhub.com","html":"<iframe src=\"https://next.vizhub.com/viz/gist-67a5211cf2c5cbda74501ce36d85ba4c?mode=embed\" width=\"960\" height=\"500\" scrolling=\"no\" frameborder=\"1\"></iframe>","width":960,"height":500,"cache_age":3600}