@ Don - thanks
@ Fred - frankly,
I thought that the colour was always along the straight line between black and white
@ Erik - the reason is that I get the same thickness, as the laser cut parts are 1mm thick and the original parts are meant to be reinforced with 1mm thick card. Is it needed? Maybe not...
The landing gear is tricky to assemble! The parts are very thin and I find in necessary to delaminate the thick GPM paper in order to get a decent result and still put a wire inside. The pictures on the kit front and rear cover seem to show that someone cheated and made thicker struts, overpainted later. Something that does not fit my particular taste…
To complicate, and discounting the rigging (it is structurally worthless, on my models) the assembly would be unstable as, viewed from the side, the struts form a rectangle. Articulated (forget the glue) triangles are stable but articulated rectangles form a mechanism. There is a degree of freedom to block! The trick can be seen on the first picture. There are 5 struts but only 3 wires. One of them makes a C and fits inside the lower strut and both struts that link to one of the fuselage sides. This way, two angles are blocked by the wire flexural stiffness and strength. The other two struts block the roll movement that the C, articulated on the fuselage, could still manage to do. The remaining structure is made of triangles, arranged in 3D to make them stable.