Add a darker search icon to the spritesheet.

Review Request #5311 — Created Jan. 23, 2014 and submitted — Latest diff uploaded

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Review Board
master

Reviewers

Add a darker search icon to the spritesheet.

This adds a darker version of the search icon, intended for lighter
backgrounds. It's otherwise of the same style.

For consistency, I placed this as the next icon after the lighter search
icon, shifting over some other icons.

I also shifted the light icon just a bit to better pixel-align it. This is
most noticeable on non-Retina resolutions.

Tested each affected icon in Retina and non-Retina modes.

Made use of the icon in another change.