Create friction-100-rc1.md

Draft for RC1 release notes. Several changes needs extended information.

_drafts/friction-100-rc1.md

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+---
+title: "Friction 1.0.0-rc.1"
+layout: post
+lead: "Introducing the first release candidate for Friction 1.0."
+image: "/assets/screenshots/100/friction-100b2-screenshot.png"
+categories: releases
+release: 1.0.0-rc.1
+windows_setup: "setup-win64.exe"
+windows_portable: "windows-x64.7z"
+linux_portable: "linux-x86_64.tar.xz"
+linux_appimage: "x86_64.AppImage"
+mac_dmg: "x86_64.dmg"
+download_active: true
+comments: ""
+---
+
+### Changes since Beta 2
+
+* Fixed a crash with NVIDIA GPUs when forcing effects to CPU-only
+* Fixed portable settings
+* UI (properties) fix for text effects
+* Style (CSS) fixes
+* Toolbars UI/UX fixes
+* Restore UI state in timeline
+* Color picker: set flat if none
+* Updated splash screen
+* Icons updates
+* macOS: fix key events
+* Focus fixes
+* macOS: Gesture support in timeline
+  * zoom timeline range
+  * scrool timeline range
+* Enable MSAA GPU settings
+  * Default is 4
+  * Recommended is 0 or 16 for modern NVIDIA/Radeon cards
+  * Fixes jagged edges on paths and text on some GPUs
+* Linux: flatpak support
+* Linux: XDG Portal support
+* Linux: Wayland support
+* Linux: Use EGL as default (GLX is deprecated)
+* Linux: Binaries (portable/appimage) now support both X11 and Wayland
+* Added support for pivot alignment
+  * The align tool supports several new alignments
+* Fixed video import fps detection
+* Fixed shader `texture` usage
+* macOS: Improved viewer gesture pan
+* SDK: Moved to Qt 5.15.16 + KDE patches
+* Text tool will now open text editor if hovering text
+* Canvas toolbar: support show/hide lables
+* Expression editor: remove easing tab
+* UI fixes in expression editor
+* Expressions: added `clamp` function
+* Expressions: support external JS functions
+* Expressions: Added scene bindings
+  * `$scene.fps`
+  * `$scene.width`
+  * `$scene.height`
+  * `$scene.rangeMin`
+  * `$scene.rangeMax`
+* Fixed crash on apply expression/export to SVG when using `$value` and `$frame` expressions.
+* Fill and Stroke: restore UI visibility state
+
+---
+
+* See Beta 2 [release notes](https://friction.graphics/releases/friction-100-beta2.html) for more information regarding changes in v1.0.
+* See Beta 1 [release notes](https://friction.graphics/releases/friction-100-beta1.html) for more information regarding changes in v1.0.