Microsoft also further unifying the light and dark theming across the OS and are looking forward to you trying these latest changes and providing additional feedback. Microsoft are still working on it, but you’ll see some good changes with this build. Microsoft have heard feedback about the consistency of menus within Windows 10, so Microsoft have made some changes to improve these and give them a modern look at and feel.
You can wait for your PCs normal installation time for Windows Updates and it will install automatically, or you can go to Settings > Update & security > Windows Updates and click the “Check for updates” button. This build will be available to the Fast ring, and will be delivered via Windows Update. Windows 10 Insider Preview Build 10532 is rolling out for PCs to the Fast ring.