Support Colored Header (TACC Blue Header)

[wesleyboar]

Goal

• Support colored header for a site.
  • Support blue header for TACC.

Background

• GH-191: Theme (for ProTX Light Header & TACC Blue Header) #192 adds support for has-dark-logo header.
• GH-101/FP-1458: Header Redesign #222 redesigns the header.
• TACC Redesign shows a redesigned header that is blue.

Direction

Maybe Great Way: Have TACC set environmental variables.

Alternative Way: ???

Undesirable Way: Have TACC CSS change background color in as many places as needed.

[wesleyboar]

Closed by #192.