It seems to be common practice these days for instructions for devices made of plastic to be printed in relief on their surface. This grey-on-grey text lacks somewhat in contrast, and so the instructions for changing the ink cartidge on the printer, for example, can ony be read under specific combinations of artificial and natural light, that can occur only at certain times of the year.
And so it is that I have only just noticed the interesting fact that my wheelie bin, that I have been using for a year or so, carries a sound SPL level warning. Apparently it emits 97dB. Doubtless ear protection is required for using it safely. It is comforting to know that the government is looking after us so well.