Merge pull request #93 from bryan-m-hughes/master

Updated readme
[TIMOB-12991] Implemented the results theming system with a single theme currently, 'light'
[TIMOB-12991] Fleshed out theming support and added a dark theme
[TIMOB-12991] Fixed visualization backgrounds in the dark theme
Merge pull request #94 from bryan-m-hughes/timob-12991

Timob 12991 Theme support