diff --git a/bin/Color Assistant.exe b/bin/Color Assistant.exe
index 8e49a4c..34ff048 100644
Binary files a/bin/Color Assistant.exe and b/bin/Color Assistant.exe differ
diff --git a/changelog.txt b/changelog.txt
index 5512ca3..67ca341 100644
--- a/changelog.txt
+++ b/changelog.txt
@@ -1,4 +1,8 @@
 
+v0.2 (Jun. 7, 2017)
+=================
+- Add choices of color difference thresholds.
+
 v0.1.1 (May. 14, 2017)
 =================
 - Fix crash when icon file not found.
diff --git a/readme.md b/readme.md
index f386564..ff6bfc5 100644
--- a/readme.md
+++ b/readme.md
@@ -12,8 +12,9 @@ Color Assistant is in open beta, and any suggestions about how it could better h
 
 #### How to use
 
-Run Color Assistant, and an icon will appear in the system tray. Click the icon (or use a hotkey, default Ctrl+Alt+C) to start picking colors on screen. Click and hold left mouse button on a color to flash it.
-Click the exit button at bottom right of the screen or press ESC to exit picking colors.  
+Run Color Assistant, and an icon will appear in the system tray. Click the icon (or use a hotkey, default Ctrl+Alt+C) to enter color-flashing mode. Click and hold left mouse button on a color to flash it.
+Click the exit button at bottom right of the screen or press ESC to exit color-flashing mode.  
+You can choose from 3 color difference thresholds (wide, normal, narrow) using the 3 corresponding buttons at bottom right of the screen.  
 
 #### Download
 
@@ -21,7 +22,7 @@ https://github.com/geovens/Color-Assistant/releases
 
 #### Features
 
-Works for anything on the screen (web browser, PDF documents, Microsoft Word documents, whatever)  
+Works for anything on the screen (web browsers, PDF documents, Microsoft Word documents, whatever)  
 Should work fine for multiple displays (currently untested)
 
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