Hiragino font theme for PowerPoint 2016 for Mac. Putting the XML file under `/Applications/Microsoft PowerPoint.app/Contents/Resources/Office Themes/Theme Fonts/`, you will see a new entry in the font selector menu of the "master slide" panel. This work is based on http://www.brandwares.com/bestpractices/2015/10/xml-hacking-font-themes/. See also …

Hiragino.xml

<?xml version="1.0" encoding="utf-8" standalone="no"?>
<a:fontScheme name="Hiragino" xmlns:a="http://schemas.openxmlformats.org/drawingml/2006/main">
  <a:majorFont>
    <a:latin typeface="ヒラギノ角ゴシック W6" />
    <a:ea typeface="" />
    <a:cs typeface="" />
    <a:font script="Jpan" typeface="ヒラギノ角ゴシック W6"/>
  </a:majorFont>
  <a:minorFont>
    <a:latin typeface="ヒラギノ角ゴシック W2" />
    <a:ea typeface="" />
    <a:cs typeface="" />
    <a:font script="Jpan" typeface="ヒラギノ角ゴシック W2"/>
  </a:minorFont>
</a:fontScheme>