Font constructor
const
Font({})
Create a font using size
of font in pixels, family
name of font(s)
using FontFamily, style
of the font using FontStyle, variant
using
FontVariant, and lineHeight
extra space (leading) around the font in
pixels, if not specified it's 1.2 the font size.
Implementation
const Font(
{this.size,
this.family,
this.weight,
this.style,
this.variant,
this.lineHeight});