0.13.0

Changed behaviour

• Canvas uses async rendering (#376)
• Svg uses async rendering (#378)
• Improved momentum scrolling (#381)
• Support primary buffer (middle-click clipboard) on Linux (#383)

Additions

• Add EventMgr::push_async, push_spawn (#376)
• Support transparent windows (#380)
• Support borderless windows and basic toolkit-drawn titlebar (#380)
• New GrabMode::Click (#383)
• Add PressSource::is_secondary, is_tertiary (#383)
• Add EventMgr::get_primary, set_primary (#383)

Other changes

• Move theme traits, SimpleTheme and FlatTheme to kas-core (#374)
• Move ShadedTheme to kas-wgpu (#374)
• Move Shell to kas-core. Add WindowSurface, GraphicalShell, ShellAssoc traits for better abstraction of shell implementation. Add kas::shell::DefaultShell. (#375)
• Rename ToolkitProxy → Proxy, TkAction → Action (#375)
• Widget::handle_message is now called on the widget submitting a message (#376)
• Update to Winit 0.28, Wgpu 0.15, dark-light 1.0 (#379)
• Switch from window_clipboard to arboard + smithay-clipboard (#383)
• Cancel existing mouse grab when requesting a new one (#383)
• Change data structure of Event::PressStart, PressMove, PressEnd (#383)
• Replace EventMgr::grab_press with Press::grab builder pattern (#383)

Fixes

• Translate pop-up menus inside scroll regions (#373)