With Windows in specific, themes draw their lineage all the way back to the Microsoft Plus! add on pack for , with more robust Visual Styles debuting in Windows XP, and a full blown theming engine arriving with the release of Windows 7 . Around the time of Windows 10 in 2015, Microsoft consolidated its theming efforts by distributing individual packs directly through its digital storefront, and by allowing third party developers to submit their own unique designs. These days, theme packs...
