Another question…J-10

as we all know, recently there’s been a lot of J-10 pictures. They all seems to be quite consistent in layout, so we can assume that the general layout is there. But, i find it interesting to note that the thrust line seems to be pointing downward from the body axis. That’s a little bit strange as almost every single fighter plane i know of have a “pitch” up thrust axis. Also, is it usual for Chinese fighters in flight tests to use Cameo paints instead of the usuall, red and white for ID purposes? If the real aircraft does have a pitch up thrust axis, i like to know if anyone have any clue as to why? I believe even wind tunnel models before have a pitch up axis.