Initial work on a new galaxy map

Issue #4
Replaced colors with new defaults

Spoiler alert: They’re from https://github.com/mrmrs/colors-saturated
and I love them <3
There's a changelog!

Woo! Figured I’d add it to make better use of the new CSS colors.
Merge pull request #8 from nfreader/newcolors

Added new default color styles and a changelog!