FlutterのTextThemeの簡易な歴史（ほんとに簡易）

2014

display4
display3
display2
display1
title
subhead
subtitle
body2
body1
caption
button
overline

2018

headline1
headline2
headline3
headline4
headline5
headline6
subtitle1
subtitle2
body1(bodyText1)
body2(bodyText2)
caption
button
overline

2021

Display Large
Display Medium
Display Small
Headline Large
Headline Medium
Headline Small
Title Large
Title Medium
Title Small
Label Large
Label Medium
Label Small
Body Large
Body Medium
Body Small