On the console, orange means "the whole build failed again." For the box to be orange, there's no requirement that the same step be the one that failed again.
Here's an example in the same order the console would give:
- build 4: orange (failed because of unit_tests)
- build 3: orange (failed because of ui_tests)
- build 2: red (failed because of browser_tests)
I believe the same answers apply, as long as you're comparing one's console to another's console. It's not exactly the same software, though, so don't assume too much based on that alone.