+/**
+ * Options availabile to the palette.
+ *
+ * Each entry is the name of the option, followed by:
+ * type: describes the type of option, which can be:
+ * boolean|string|float|int|array<boolean>|array<int>|array<float>|array<Date>
+ * or function(parameter list)
+ * scope: if empty, then available in global scope only. Otherwise,
+ * it's an array with possible values global|series|x|y|y2|highlight.
+ */