+
+/* convert velocity to colors */
+typedef struct { double r, g, b; } rgb_t;
+static const rgb_t rgb[] = {
+ [STABLE] = {0.0, 0.4, 0.0},
+ [SLOW] = {0.4, 0.8, 0.0},
+ [MODERATE] = {0.8, 0.8, 0.0},
+ [FAST] = {0.8, 0.5, 0.0},
+ [CRAZY] = {1.0, 0.0, 0.0},
+};
+