fix: boost transparency of sidenav

[ericjim]

Fixes: #2408

Preview

cc @chalin

[alexwolfe]

Believe it or not it will actually reduce the contrast ratio (since bg color will be a darker gray). So for accessibility, the color is better at .56.

Any specific reason to change it (preference is a valid option btw :) )

[ericjim]

@alexwolfe The reason for change was to fix: #2408; not sure if you saw it. Though I get what you mean with the contrast ratio, it's really subtle.

Note that the problem is only visible when you are in a narrow resolution (mobile).

[alexwolfe]

@ericjim Ahhh, good catch. Can you simply apply it to the mobiles styles? Otherwise I can do it today (will be tinkering around today anyway). Let me know.

[ericjim]

@alexwolfe How's that?

[alexwolfe]

@ericjim perfect 👍 Thanks for fixing this!