@m_goldberg With this answer, can we have the generative-art tag back? :) (I personally found the question very interesting if understand as How to generate line-drawing style 3D graphics.)

@rm-rf The standard V10 plot colors are given by ColorData[97][Mod[n, 10, 1]].

@MichaelE2 Pics? Changing the default plot colors is my top request I've been too embarrassed to ask for.

ListPlot[RandomReal[1, {2, 20}], Filling -> Axis, PlotLegends -> True]

It is very hard for me to tell the difference between those two sets of points.

@MichaelHale Not a fan of that default color scheme, too.

@Silvia Thanks. I mean, I can deal with it, but that's a simple example that seems to be missed by the "sophisticated built-in algorithms for aesthetic optimization", which often work very well.

@MichaelHale Aesthetics is subjective ;)

True, I think faded pink and purple are fine colors. But I think it's objectively valuable for data visualization styling to not sacrifice the ability to interpret the information for aesthetics.

@MichaelHale First five colors:

Oh, I do like that better. Thanks. I just didn't like the default first two being so similar.

Solve[a x + y == 7 && b x - y == 1, {x, y}]

How might I "rename" the vertices of a graph?

For example, instead of 1, 2, 3, etc. maybe I want "A", "B", "C" instead

@hftf You can use anything you want as vertices.

@amr Ah sorry, I know about that, but I want to use for example something built-in like CompleteGraph[...].

Instead of doing Graph[EdgeList[CompleteGraph[...] /. {...}]] or something

The brackets are messed up there, sorry

@hftf Look up VertexLabels -- second example

@MichaelE2 Thanks Michael, but that doesn't do what I want - it only applies a superficial label. I want to do something like HighlightGraph[mygraph, UndirectedEdge@@@{{"A","B"},{"C","D"}}] instead of HighlightGraph[mygraph, UndirectedEdge@@@{{1,2},{3,4}}]

i remember circumventing this with Block in version 8. I can't seem to reproduce that in v9 though.

i did something like Block[{Graph = graph}, ...]

oh here we go

VertexReplace

Oh

@amr I feel really dumb now. Thanks amr

We had mentioned getting Mr. Wizard the newer version of M, is that likely to still happen?