Due to the nature of how scrollbar decorations are implemented in the VSCode API, for simplicity's sake most changes will require a restart to take effect.
heatscroll.alpha: Maximum heat map opacity.
heatscroll.decayRate: How quickly new heat map activity erases old heat map activity.
heatscroll.decayIntervalMs: How quickly the heat map decays without any activity.
heatscroll.drawIntervalMs: How frequently the heat map is redrawn.
heatscroll.lane: Which scroll bar lane the heat map occupies (L=1|C=2|R=4|F=7).
heatscroll.lineThreshold: Don't show heatmap for files with less lines than this..
heatscroll.rgbEdit: Comma-separated RGB heat map color for editing.
heatscroll.rgbScroll: Comma-separated RGB heat map color for scrolling.