Extras is not "totally ignored by the IDE"

[vshymanskyy]

If I put an additional example sketch into "extras", it is displayed in examples menu in the IDE.
This additional example is used just to test build against different platforms, so I don't want it to be displayed.

[per1234]

@cmaglie I'd like to bump this issue. It still occurs with Arduino IDE 1.8.3.

It's really a problem when you have sketches not intended for the average user, such as those used for testing of the library. These will only confuse the target users of the File > Examples menu.

I notice that it's not only the extras folder that has this problem. Any subfolder of the library folder containing a sketch is shown in the File > Examples menu. That's not the behavior I expect. The library specification seems pretty clear on this:

Library examples must be placed in the examples folder.

Sketches contained inside the examples folder will be shown in the Examples menu of the IDE.

The content of the extras folder is totally ignored by the IDE; you are free to put anything inside