The team over at KSDev (who also publish FMXLinux) have a massive set of custom styles for FireMonkey available over on their DelphiStyles.com site. There are over 39 different styles fore FireMonkey. Some of the styles are for all of FireMonkey’s platforms which include Android, IOS, macOS, Windows, and Linux while other styles look like they are for specific platforms (Windows, macOS, and Linux). In addition to all of the styles they have available they also have a FireMonkey UI Plus pack. The FM UI Plus pack contains a significant number of enhancements for FireMonkey which make your app more polished on Windows or macOS. Here is the current full list of enhancements:
- New default HQ style for macOS from delphistyles.com, which includes graphics with all specifics of “Sierra” and “High Sierra” at this moment
- New focused frame around controls on macOS, which looks as native
- New toolbar style, which can be merged with window caption to get more native look and feel on macOS
- Fixes of text drawing on macOS and Windows systems
- Fixes of TCalendar, TGrid drawing on Windows and macOS
- More all possible fixes and improvements for different platforms in the future
- Quickly implementation of UI changes for different platforms in the future
- Easy to Enable / Disable “FM UI Plus” for your application (just call project popup menu and select one item)
Utilizing custom styles and or deploying these FireMonkey enhancements can really polish the look and feel of your apps to deliver a profession product to your customers. The DelphiStyles are a commercial product which have a lifetime subscription (which I assume means you receive free updates for life). You can also bundle it for cheaper with FMXLinux and some of their other offerings. C++Builder utilizes FireMonkey styles as well so they are also usable in your C++ apps.