Change generation interface?

[adamyanalunas]

Currently a Font instance is used only to have a convenient place to keep calling generate. This works, but isn't very intuitive or nice to look at. For example, updating multiple fonts can get pretty noisy:

let headlineFont = Font.SourceSansPro(24, weight: .Black, style: .Italic).generate()
let bylineFont = Font.SourceSansPro(17, weight: .Semibold).generate()
let bodyFont = Font.SourceSansPro(17, weight: .Medium).generate()\

headlineLabel.font = headlineFont
bylineLabel.font = bylineFont
fooLabel.font = bodyFont
bazLabel.font = bodyFont
barLabel.font = bodyFont

What if Font extensions were meant to generate a function that accepted the size, weight, and style for that particular font? That way you could generate a function for a particular font and call it as needed for different font adjustments.

let sourceSansPro = SourceSansPro()
let bodyFont = sourceSansPro(17, weight: .Medium)

headlineLabel.font = sourceSansPro(24, weight: .Black, style: .Italic)
bylineLabel.font = sourceSansPro(17, weight: .Semibold)
fooLabel.font = bodyFont
bazLabel.font = bodyFont
barLabel.font = bodyFont

Thoughts?