Google China Highlighting Query Terms in Search Results in Red

Google China seems to be highlighting the query term in the search results in red, instead of just bolding the query term, like was done in the past. For example, a search on search engine roundtable at Google China returns all matches of the keyword phrase on the page in red. Here is a screen capture:

Let's compare this to a search at Google.com:

Wonder why Google China is going with the red highlights, as opposed to the normal bolding highlighting?

Forum discussion at DigitalPoint Forums.