parse.highlight_tuples(x, default = "red");
should be a character string that contains the pathway nodes id and optional highligh color for make the kegg pathway map rendering.
value should be in formats of:
"K00001:blue;K00002:red;C00001:green"
where the first part is the kegg id, the second part is the highlight color.
or just a list of the kegg id without highlight color, such as:
"K00001;K00002;C00001"
The default color is "red" if the highlight color is not specified. [as string]
the default color for the hightlights. [as string]
a tuple list that contains the highlight information, such as:
list(K00001 = "blue", K00002 = "red", C00001 = "green");