[Solved] Where to find all hidden layers/effects in QGIS?

Taras Asks: Where to find all hidden layers/effects in QGIS?
In the QGIS there is a set of some “special” words that one can type in the ‘Coordinate’ box to supply additional layers into the Layers Panel or provoke extra activities. There was also a tweet posted several years ago, however, it does not include all of the possible tricks.

This is the “magic” ‘Coordinate’ field:
input
where I can type some words, e.g. world
input_world

For instance, when I type world I gonna get this layer
world

When I type contributors I am receiving another layer
contributors

When I use hackfests and leads to this layer
hackfests

There are also tricks with dizzy and bored when typing in the ‘Coordinate’ field.

The content of some layers I can find under the C:/OSGeo4W64/apps/qgis/resources/data. However, I was wondering how to get all available hidden features/actions within the ‘Coordinate’ field?

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