You can try L&F which i am developing - WebLaF
It combines three parts required for successful UI development:
- Cross-platform re-stylable L&F for Swing applications
- Large set of extended Swing components
- Various utilities and managers
Binaries: https://github.com/mgarin/weblaf/releases
Source: https://github.com/mgarin/weblaf
Licenses: GPLv3 and Commercial
A few examples showing how some of WebLaF components look like:
Main reason why i have started with a totally new L&F is that most of existing L&F lack flexibility - you cannot re-style them in most cases (you can only change a few colors and turn on/off some UI elements in best case) and/or there are only inconvenient ways to do that. Its even worse when it comes to custom/3rd party components styling - they doesn't look similar to other components styled by some specific L&F or even totally different - that makes your application look unprofessional and unpleasant.
My goal is to provide a fully customizable L&F with a pack of additional widely-known and useful components (for example: date chooser, tree table, dockable and document panes and lots of other) and additional helpful managers and utilities, which will reduce the amount of code required to quickly integrate WebLaF into your application and help creating awesome UIs using Swing.