update Readme file

Author: jwortmann

README.md

@@ -1,4 +1,5 @@
 # Brackets Color Scheme
+[![License: MIT](https://img.shields.io/badge/License-MIT-blue.svg)](https://github.com/jwortmann/brackets-color-scheme/blob/master/LICENSE)
 
 This package for Sublime Text provides two color schemes (light and dark) similar to the [Adobe Brackets](http://brackets.io/) text editor.
 
@@ -19,6 +20,31 @@ Alternatively you can perform a manual installation:
 
 ![Brackets Dark](http://i.imgur.com/HZ0acdw.png)
 
+## Color palette
+
+|      | Brackets Light | Brackets Dark |
+| ---- | -------------- | ------------- |
+| Background | ![Background](http://via.placeholder.com/20/f8f8f8/f8f8f8) `#F8F8F8` | ![Background](http://via.placeholder.com/20/1d1f21/1d1f21) `#1D1F21` |
+| Text | ![Text](http://via.placeholder.com/20/535353/535353) `#535353` | ![Text](http://via.placeholder.com/20/dddddd/dddddd) `#DDDDDD` |
+| Comment | ![Comment](http://via.placeholder.com/20/949494/949494) `#949494` | ![Comment](http://via.placeholder.com/20/767676/767676) `#767676` |
+| Blue | ![Blue](http://via.placeholder.com/20/446fbd/446fbd) `#446FBD` | ![Blue](http://via.placeholder.com/20/6c9ef8/6c9ef8) `#6C9EF8` |
+| Orange | ![Orange](http://via.placeholder.com/20/e88501/e88501) `#E88501` | ![Orange](http://via.placeholder.com/20/d89333/d89333) `#D89333` |
+| Green | ![Green](http://via.placeholder.com/20/6d8600/6D8600) `#6d8600` | ![Green](http://via.placeholder.com/20/85a300/85a300) `#85A300` |
+| Violet | ![Violet](http://via.placeholder.com/20/8757ad/8757ad) `#8757AD` | ![Violet](http://via.placeholder.com/20/b77fdb/b77fdb) `#B77FDB` |
+
+## New color scheme format in Sublime Text 3.1 (>= Build 3170)
+
+Sublime Text 3.1 (Build 3170) introduced a new color scheme format based on JSON, which seems to have some advantages
+to the previous TextMate `.tmTheme` format. This release of the Brackets Color Scheme for Sublime Text includes color
+definitions and (slightly improved) highlighting rules in the new file format, as well as the old `.tmTheme` files with
+the same base filenames. Current releases of Sublime Text should automaticly use the new `.sublime-color-scheme` files
+and ignore the files with same filenames in the old file format. However, if any kind of issues occur with the new
+files, you can still download the old `.tmTheme` files from this GitHub repository and place them into your user
+directory of Sublime Text.
+
+With the new color scheme format you can also customize color variables and override/add user-specific highlighting
+rules, see [this example](https://www.sublimetext.com/docs/3/color_schemes.html#customization).
+
 ## License
 
 The MIT License (MIT)