OBSERVATION (ambiguity of icon usage)

Notice that icons are ambiguous: they can be notifying you of a STATUS (as for the muted/unmuted icon in a Hangouts meeting), or offering you an OPTION (as for the show/don’t show icon in the gmail login screen). So, when you are in a Hangouts meeting and see that your mic has a slash through it, it means you are MUTED, but when logging in to gmail and see that the eye icon is slashed, it means that your password will be VISIBLE. So, the rule seems to be: when you are static, the icon shows your status, but when you are dynamic, the icon shows your option.
keywords: confusion, cyberspace, Information Technology (IT), user-friendliness, convenience