diff --git a/README.md b/README.md
index 314e2cb..59090a4 100644
--- a/README.md
+++ b/README.md
@@ -49,6 +49,11 @@ Detected file extensions
 
 ## Getting started
 
+### Prerequisites
+
+- ecu.test or trace.check **2025.2** or newer installed (2025.1 probably works with some limitations)
+- There is no license required for comparing files
+
 ### Installation
 
 To install the extension, use the specific installation method for your browser.
@@ -111,8 +116,6 @@ You are good to go! You can also pin the extension to the toolbar for easy acces
 
 - ecu.test Diff-Viewer will be opened
 
-  - ⚠️This needs ecu.test installed and a valid license available ⚠️
-
     <img style="display: block; alight: left" src="./docs/images/firefox/diff_viewer.png" alt="Diff Viewer" width="800"/>
 
 ## Documentation
diff --git a/static/icons/gcd.png b/static/icons/tracetronic/gcd.png
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diff --git a/static/icons/mask.png b/static/icons/tracetronic/mask.png
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rename from static/icons/mask.png
rename to static/icons/tracetronic/mask.png
diff --git a/static/icons/ppd.png b/static/icons/tracetronic/ppd.png
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rename from static/icons/ppd.png
rename to static/icons/tracetronic/ppd.png
diff --git a/static/icons/tbc.png b/static/icons/tracetronic/tbc.png
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diff --git a/static/icons/tcf.png b/static/icons/tracetronic/tcf.png
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diff --git a/static/icons/xam.png b/static/icons/tracetronic/xam.png
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rename to static/icons/tracetronic/xam.png