I want to draw a graph exactly like the output of the following answer, but with vertices of different colors and different labels.
https://tex.stackexchange.com/a/357243/148579
What parameters should be added to the latex code for having vertices with different colors and different labels? Because all the vertices of the graph in the above answer have the same color (black) and the same label (u) (without considering indexes).
\foreach \angle/\lab/\col[count=\n] in {120/v/red, …} {\node[roundnode, color=\co, label=\angle:{$\lab_{\ni}$}] … {};
You can prepare different styles that are applied automatically in the loop.