heatmap.js-interpolation-woracheth

From woracheth's fork of heatmap.js but with a small change of setting "absolute" to true by default, so that it can be used with @types/heatmap.js without change. (I'm currently locked out of my github account, so I'm not creating my own fork for this, sorry.)

https://github.com/Woracheth/heatmap.js