This tree is only weeks away.
Apple has moved to go content not chrome with the release of OSX Yosemite. I find the Spotlight search to be less visible than before.
On Yosemite, the Spotlight search box jumps into the middle of the page, with very little outlining and the light words “Spotlight Search”. On the previous versions of OSX, the Spotlight search has appeared on the top bar highlighted. I prefer the older version after nearly five months with Yosemite. I have a Mac that I maintain that still has Mavericks.