Updated sprite editor

Author: chunkypixel

CHANGELOG.md

@@ -2,11 +2,12 @@
 
 The following enhancements and changes have been made to Atari Dev Studio:
 
-## 0.10.6
+## 0.10.6 (TBR)
 
 * Updated the Sprite Editor with the following changes:
   - fixed issue using scroll wheel to zoom on the Sprite List window
-  
+  - Added shift key functionality (erase/background color) when using line, rectange and ellipse tools
+
 ## 0.10.5
 
 * Update Stella to the latest version (v7.0).