Google continually tweaks its search results on desktop and on the mobile web. Last week I found topic recommendations based on previous searches just below the search bar on desktop. In the latest test identified by 9to5Google, there has been a minor redesign of the search field found on the main home page and at the top of the result page. The left-hand side of the bar gained a magnifying glass icon in Google’s four colors of red, green, blue, and yellow. Abner Li explains.