Help Salesforce Developers and Admins to distinguish Sandbox and Production easily by add a red border on page.
Release Note v1.5.4 Add Support for VF new domain. Add change icon feature. Default OFF. Tab Icons's color will change when swtich ON.
Release Note v1.5.3 Fix border position and coloring. *Thanks to @ScottWalkerAU for update this version.
Release Note v1.5.2 Fix some bugs.
Release Note v1.5.1 Fix some bugs. In order to protect Full Sandbox. Add Sandbox support.
Release Note v1.5
Add Custom Domain Support Add Lightning Support
Release Note v1.3
Add support for VF page.
Release Node v1.2:
Add support for the instance number that over 100.