Two new tyres fitted low pressure and,and valve stem piccys

[LEEA123]

So had two new tyres fitted fitted at vw . Two days after the low pressure warning came on ,checked the tyres,all ok so reset the settings in car.
During checking the pressure i noticed the valve stems looki different on the new tyres they fitted, one thread gold and one gold and black and slightly longer thread on one, you think all ok or should I take it back to vw.?

[TrebleTA]

There is 2 types of values short for alloy wheels long for metal rims with hud caps.
A long value on a alloy will break, as ya prob clip it when parking close to a curb.