Or that on Apple platforms, you are not supposed to use "OK" as a button, but rather the action it is going to perform (e.g. "Delete").
Using non-standard labelling _and_ putting buttons in their non-standard order is a real issue.
Not to mention that on some platforms the position of the buttons may be specific to localization, e.g. they may switch order if the user's language is set to Hebrew.
On Mac, the coloring indicates which action is triggered by default with the keyboard - one of the first things to go if you stylize the UI yourself.
These and all the other inconsistencies add up until you have something like the iOS Youtube app, where IMHO the UI is just complete nonsense. Just because you are full screen doesn't mean you can redefine fundamentals about how information is laid out or what taps are supposed to do.
Using non-standard labelling _and_ putting buttons in their non-standard order is a real issue.
Not to mention that on some platforms the position of the buttons may be specific to localization, e.g. they may switch order if the user's language is set to Hebrew.
On Mac, the coloring indicates which action is triggered by default with the keyboard - one of the first things to go if you stylize the UI yourself.
These and all the other inconsistencies add up until you have something like the iOS Youtube app, where IMHO the UI is just complete nonsense. Just because you are full screen doesn't mean you can redefine fundamentals about how information is laid out or what taps are supposed to do.