Changes
UI\Draw\Text\Font\Descriptor::getFamily
UI\Draw\Text\Font\Descriptor::getSize
UI\Draw\Text\Font\Descriptor::getWeight
UI\Draw\Text\Font\Descriptor::getItalic
UI\Draw\Text\Font\Descriptor::getStretch
UI\Draw\Text\Font::getAscent
UI\Draw\Text\Font::getDescent
UI\Draw\Text\Font::getLeading
UI\Draw\Text\Font::getUnderlinePosition
UI\Draw\Text\Font::getUnderlineThickness
Radial and Linear Gradients
UI\Draw\Brush::addStop
UI\Draw\Brush::delStop
UI\Draw\Brush::setStop
Exceptions
Arrangement controls child list
Arrangement controls API improvements