Is your feature request related to a problem? Please describe.
On a new OIE installation, we have the same color as the mirth connect installation

Describe your use case
When migrating from Mirth Connect to OIE, the GUIs should have a different color to differentiate them at first glance.

Describe the solution you'd like
Change the default color for the new installation.

Describe alternatives you've considered
no opinion on what color to use

Additional context