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<!-- Please read the "Making a PR" section of [`CONTRIBUTING.md`](https://github.com/emilk/egui/blob/main/CONTRIBUTING.md) before opening a Pull Request! * Keep your PR:s small and focused. * The PR title is what ends up in the changelog, so make it descriptive! * If applicable, add a screenshot or gif. * If it is a non-trivial addition, consider adding a demo for it to `egui_demo_lib`, or a new example. * Do NOT open PR:s from your `master` branch, as that makes it hard for maintainers to test and add commits to your PR. * Remember to run `cargo fmt` and `cargo clippy`. * Open the PR as a draft until you have self-reviewed it and run `./scripts/check.sh`. * When you have addressed a PR comment, mark it as resolved. Please be patient! I will review your PR, but my time is limited! --> # What it does Addition of a new system of theme plugins which allow the user to use different rules engine to compute the style for the available specialised widget style. # How to use Create a engine implementing the trait `ThemePlugin` and `ThemeStyle<S: StyleStruct>` and implement the necessary methods, then register this way (example for `ButtonStyle`): ```ui.add_theme::<ButtonStyle>(&mycustomengine);``` Now all button will call the `ThemeStyle<ButtonStyle>` method to compute the correct style and later use the cached value to avoid the costly computation. If no valid `ThemeStyle<S>` or engine is available then it fallback to the default style. * Closes part of <https://github.com/emilk/egui/issues/3284> * [x] I have followed the instructions in the PR template --------- Co-authored-by: adrien <221212@umons.ac.be> Co-authored-by: Emil Ernerfeldt <emil.ernerfeldt@gmail.com> Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com> Co-authored-by: Lucas Meurer <hi@lucasmerlin.me>
egui and eframe examples
All the examples in this folder uses eframe to set up a window for egui. Some examples are specific to eframe, but many are applicable to any egui integration.
There are a lot more examples at https://www.egui.rs, and it has links to the source code of each example.
Also check out the official docs at https://docs.rs/egui and https://docs.rs/eframe.
Note that all the examples on main are for the latest main version of egui.
If you want to look for examples for a specific version of egui, go to that tag, e.g. https://github.com/emilk/egui/tree/latest/examples.