doc: updates changelog

CHANGELOG.md

@@ -5,11 +5,14 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 ## [Unreleased]
-### Added
-- [Random color training option](https://github.com/faceshiftlabs/DeepFaceLab/tree/feature/random-color)
-- [MS-SSIM loss training option](https://github.com/faceshiftlabs/DeepFaceLab/tree/feature/ms-ssim-loss-2)
 ### In Progress
+- [MS-SSIM loss training option](https://github.com/faceshiftlabs/DeepFaceLab/tree/feature/ms-ssim-loss-2)
 - [Freezeable layers (encoder/decoder/etc.)](https://github.com/faceshiftlabs/DeepFaceLab/tree/feature/freezable-weights)
+- [GAN stability improvements](https://github.com/faceshiftlabs/DeepFaceLab/tree/feature/gan-updates)
+
+## [1.2.0] - 2020-03-17
+### Added
+- [Random color training option](doc/features/random-color/README.md)
 
 ## [1.1.5] - 2020-03-16
 ### Fixed
@@ -42,7 +45,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 - Reset stale master branch to [seranus/DeepFaceLab](https://github.com/seranus/DeepFaceLab), 
   21 commits ahead of [iperov/DeepFaceLab](https://github.com/iperov/DeepFaceLab) ([compare](https://github.com/iperov/DeepFaceLab/compare/4818183...seranus:3f5ae05))
 
-[Unreleased]: https://github.com/olivierlacan/keep-a-changelog/compare/v1.1.5...HEAD
+[Unreleased]: https://github.com/olivierlacan/keep-a-changelog/compare/v1.2.0...HEAD
+[1.2.0]: https://github.com/faceshiftlabs/DeepFaceLab/compare/v1.1.5...v1.2.0
 [1.1.5]: https://github.com/faceshiftlabs/DeepFaceLab/compare/v1.1.4...v1.1.5
 [1.1.4]: https://github.com/faceshiftlabs/DeepFaceLab/compare/v1.1.3...v1.1.4
 [1.1.3]: https://github.com/faceshiftlabs/DeepFaceLab/compare/v1.1.2...v1.1.3

doc/features/random-color/README.md

@@ -0,0 +1,22 @@
+# Random Color option
+
+Helps train the model to generalize perceptual color and lightness, and improves color transfer between src and dst.
+
+- [DESCRIPTION](#description)
+- [USAGE](#usage)
+
+![](example.jpeg)
+
+## DESCRIPTION
+
+Converts images to [CIE L\*a\*b* colorspace](https://en.wikipedia.org/wiki/CIELAB_color_space),
+and then randomly rotates around the `L*` axis. While the perceptual lightness stays constant, only the `a*` and `b*`
+color channels are modified. After rotation, converts back to BGR (blue/green/red) colorspace.
+
+If visualized using the [CIE L\*a\*b* cylindical model](https://en.wikipedia.org/wiki/CIELAB_color_space#Cylindrical_model),
+this is a random rotation of `h°` (hue angle, angle of the hue in the CIELAB color wheel),
+maintaining the same `C*` (chroma, relative saturation).
+
+## USAGE
+
+`[n] Random color ( y/n ?:help ) : y`