Search notes:
Excel: Page Layout -> Themes
Select the preferred visual theme or schemes.
These themes and schemes are stored in the following locations:
With
VBA, these themes and schemes can be set with
ActiveWorkbook.ApplyTheme("C:\Program Files (x86)\Microsoft Office\root\Document Themes 16\Ion Boardroom.thmx")
ActiveWorkbook.Theme.ThemeColorScheme.Load("C:\Program Files (x86)\Microsoft Office\root\Document Themes 16\Theme Colors\Blue.xml")
ActiveWorkbook.Theme.ThemeFontScheme.Load("C:\Program Files (x86)\Microsoft Office\root\Document Themes 16\Theme Fonts\Arial.xml")
ActiveWorkbook.Theme.ThemeEffectScheme.Load("C:\Program Files (x86)\Microsoft Office\root\Document Themes 16\Theme Effects\Reflection.eftx")