Figure most of those would likely be or come with symbols designed to be 'universally' recognized.
(By the species who made them, and so with the expectation that visual acuity and cultural differences would, naturally, be ignored such that no symbol could be seen or something quite the reverse interpreted...)
(By the species who made them, and so with the expectation that visual acuity and cultural differences would, naturally, be ignored such that no symbol could be seen or something quite the reverse interpreted...)