+static const char* colors[] = {
+ "blue",
+ "red",
+ "green3",
+ "goldenrod",
+ "brown",
+ "purple",
+ "magenta",
+ "turquoise4",
+ "gray25",
+ "forestgreen",
+ "hotpink",
+ "lightblue",
+ "tan",
+};
+
+static inline const char* get_color(int id)
+{
+ return colors[id % (sizeof(colors) / sizeof(colors[0])) ];
+}
+