vcr: fill out the available PNG graph colors

I've picked some colors just to have /something/ populating these.

For now only the first two (red and cyan) are being used, but
subsequent commits will wire these up to a per-row palette
selector which the charts code will set appropriately and vcr
will need to consult when presenting the charts to png/X.

It's tempting to make the colors user-definable at run-time.  But
that actually seems like a bad idea.  Instead, I expect to
iterate on these until a Good Enough set of colors is arrived at,
then leave them hard-coded in the source.  Why? you may ask...
well, it's simple - I want everyone using vmon to develop a
familiarity with grokking the output in a way that's consistent
and transferrable if they encounter it elsewhere, or if people
pass around the snapshots / attach them to GH/JIRA tickets etc.

We shouldn't need a decoder wheel to understand what the colors
mean to a given use case.  The source defines the meaning of the
colors, and once the dust settles, it should try stay as
consistent as possible.

0 files changed, 0 insertions, 0 deletions