This visualization displays ASIF, a gene-tissue expression heatmap with hierarchical annotations on both axes. Rendered as an animated d3 visualization using `scaleBand`, `scaleOrdinal`, and `scaleSequential` with the Inferno color scheme, it supports filtering through clickable y-axis annotation bars that trigger `setState`. A tooltip, built with `d3.pointer` and HTML elements, shows the gene and tissue for each cell. Data comes from the ASIF dataset, with a color legend generated from the `colorScale`.