Here are the classes, structs, unions and interfaces with brief descriptions:

[detail level 123]

flatui	Namespace for FlatUI library
details
FloatConverter	Converts from a mathfu::vector to a const float pointer and vice versa
FloatConverter< float >
FloatConverter< mathfu::Vector< float, d > >
AnimCurveDescription	Describes a curve's typical shape
Margin	Specifies the margins for a group, in units of virtual resolution
FontFamily	A class holding font family information. The class provides various ways to support fonts such as a font collection (multiple fonts in a file), referencing a font by a famly name etc
FontBufferParameters	This class that includes font buffer parameters. It is used as a key in the unordered_map to look up FontBuffer
LinkInfo	HTML link href, and the location of the link text in FontBuffer
FontMetrics	This class has additional properties for font metrics
FontVertex	This struct holds all the font vertex data
FontBufferAttributes	A structure holding attribute information of texts in a FontBuffer
UnderlineInfo
FontBufferContext	Temporary buffers used while generating FontBuffer. Word boundary information. This information is used only with a typography layout with a justification
GlyphInfo	This struct holds the glyph information that is used when re-creating a FontBuffer
FontBuffer	This is used with the texture atlas rendering
FontManager	FontManager manages font rendering with OpenGL utilizing freetype and harfbuzz as a glyph rendering and layout back end
ScriptInfo	This struct holds the script information used for a text layout
FontShader	Helper class to handle shaders for a font rendering. The class keeps a reference to a shader, and a location of uniforms with a fixed names. A caller is responsive not to call set_* APIs that specified shader doesn't support