Classic/blue style is missing for help tab

[ocean90]

The patch will add the same style as in the fresh/gray theme.

Or should it have a blue touch?

In [18980]:

Add basic help styles to colors-classic. props ocean90, see #18964.

Added blue touch for Help and adjusted some flyout and menu blues

Still unsure if we're attempting to match help to the admin scheme or the admin bar.

I feel like it should match the admin bar drop-downs. I tried changing the drop-downs to blue but there's some complex non-trivial css inheritance going on and I suspect someone who knows this css file better ought to look at it.

Help will be moving back out of the admin bar, so the blue patch should be applied.

In [19118]:

Blue admin color scheme updates for the contextual help tabs. Props chexee. see #18964