Well done PowerApps team!! Just days before Ignite they rolled out Rules for Conditional Formatting in PowerApps. You could technically get the same functionality with building out formulas, but the new (experimental) rules bypass this and are MUCH more end-user friendly.
Check out the blog post.
AND take a look at the supporting documentation that’s already released:
Create a rule in PowerApps
For those of us coming from a SharePoint background this is creeping closer to functionality that was available back in the days of SharePoint Designer. As soon as a true web part is available to embed a PowerApp in a SharePoint page (hopefully the new “modern” pages) users will be able to replace SharePoint views with robust apps that include conditional formatting and other goodies not currently available in SharePoint alone.
Exciting stuff and more to come!!