* Note the namechange of egui::color to egui::ecolor
* Use a solid triangle for collapsing headers and windows
* Add Shadow::NONE
* Add Visuals::panel_fill, window_fill and window_stroke
* Bug fix: ComboBox::width sets the outer width of the ComboBox
* egui_extras::Table: add functions to access the `Ui` for the header/body
* ComboBox: use solid triangle
* Tweak default menu margin
* Nudge panel separator lines so they stay visible
* Update changelogs
* Using tracing-subscriber in hello_world example
* Add Key::Plus/Minus/Equals
* Warn if failing to guess OS from User-Agent
* Remove jitter when using Context::set_pixels_per_point
* Demo app: zoom in/out using ⌘+ and ⌘-
* Demo app: make backend panel GUI scale slider better
* Optimize debug builds a bit
* typo
* Update changelog
* Add helper module `egui::gui_zoom` for zooming an app
* Better names, and update changelog
* Combine Plus and Equals keys
* Last fix
* Fix docs
* Add API for querying the size of a panel
* demo app: animate backend panel collapse
* Add helper function for animating panels
* More animation functions
* Add line to changelog
