CameraBag Photo has the advanced tools you need to make your images look just how you want, but in an interface that makes it incredibly easy to re-use the styles you develop as custom filters. Or to start with existing presets to emulate classic film stock, or to batch apply the same style to hundreds of photos.
This update enables support for hi-dpi displays, and switches to 64-bit support on Windows for improved performance.
If for any reason you cannot use the 64-bit version (rare) or otherwise want to revert, the previous build is available as a beta branch called "version_3_0_1_archive". Here's a post on how to switch to a beta branch: https://steamcommunity.com/sharedfiles/filedetails/?id=380122528
(Right click on the app in your library, choose Properties, navigate to Betas, and select from the drop-down. No password needed.)
Cheers!