[FEATURE] Change the default Theme so it's not the ugly dark blue theme.

[ArcanistWill]

Ideal solution:

1. Add an ACKS II theme that uses the same color scheme as the ACKS II foundry module.
2. On first run, select the ACKS II theme (or if not that, select Classic theme). In any event, do not leave the default theme set to the Dark mode theme. The Dark mode doesn't match the VTT at all.