### Documentation Link https://matplotlib.org/devdocs/api/font_manager_api.html ### Problem The reference documentation for the `FontManager` class says that there is a singleton: > This module provides a single [FontManager](https://matplotlib.org/3.5.1/api/font_manager_api.html#matplotlib.font_manager.FontManager) instance that can be shared across backends and platforms. However, it doesn't mention that this singleton is named `fontManager`. ### Suggested improvement * The docstring should clarify that the singleton is named `fontManager`, rather than implying that the `FontManager` class is a singleton: ```restructuredtext This module provides a single `FontManager` instance, `fontManager`, that is shared across backends and platforms. ``` * The `fontManager` instance should be documented as a global variable: ```restructuredtext .. data:: fontManager The singleton instance of :class:`FontManager` ```