I recognized that on my stackoverflow profile site the font color is different then it was some days ago.
seen 1 sec ago
is now black but was orange some hours ago. Why does it change?
You are now all technicolor again; for info, the "hotness" of the color changes with age; a brand new user will be highlit, where-as long-established users will... not. Likewise, someone actively seen on the site lately will be highlit.