`cfviz-frontend --demo` does not recognize `--color=base`

[Botond Ballo]

Here is what I get when I run cfviz-frontend --demo --color=base:

Running test for heatmap option: (`--color=none`)

NO COLOR...
NO COLOR...
NO COLOR...
NO COLOR...
NO COLOR...
NO COLOR...
NO COLOR...
NO COLOR...
NO COLOR...
NO COLOR...
## UNEXECUTED ##
error: No such file or directory (os error 2)

Observe that the first line refers to --color=none, even though I passed --color=base. --color=base is one of the options listed for --color in the --help output.

[Derek Berger]

This is related to the fact that I started implementing a --color=none option first before switching focus to the --raw and --color=base options. The coloration is actually working as intended, but I forgot to update the messages / text to reflect the shift to the --color=base option.

Linking Issue #29 here since the os error is almost certainly the same issue, and is really the main problem here.