Long time users will see the update now replaces the round color picker palettes with more squarer colors.
The new color picker UI can be found by pressing on the (.) at the top right side of a sticky note. Sticky Notes update, version 2.1.3.0 - updated colour picker UI & new setting to change font size 😊 #Windows10 /BTIMOPZPlm According to Gentleman, the update brings the latest version of Sticky Notes to version 2.1.3.0. We're not seeing this update on any of our Windows Insider or Production ring machines just yet, but Microsoft's Jen Gentleman recently tweeted about the new version of the app, saying it should be rolling out now. Indeed, Microsoft has released a new version of Sticky Notes on Windows 10, bringing a new color picker UI and options to change font size. The Sticky Notes app on Windows 10 is already great for those moments when you want to drop down a quick idea for later, but a new update is making it even handier.