I created a heatmap on QGIS (2.8) and styled it using singleband pseudocolor. I want to turn it into map tiles, so I added the TIFF as a layer in TileMill. However, when it's in TileMill, it loses the style settings from QGIS and becomes black and white. I'm not entirely sure if this is an issue with something I'm doing on QGIS or on TileMill.
I just started using QGIS a few days ago.