diff --git a/components/editortoolbar/images/README.txt b/components/editortoolbar/images/README.txt
index 85f3a881da..cbc968ef22 100644
--- a/components/editortoolbar/images/README.txt
+++ b/components/editortoolbar/images/README.txt
@@ -1,8 +1,8 @@
 This directory contains all images needed by the Editor Toolbar package.
-Images are stored in lazarus resource files (.lrs). Each icon is stored
-in xpm format and in lowercase.
+Images are stored in FPC resource files (.res). Each icon is currently stored
+in xpm format but also png can be used.
 
-toolbar.lrs - All the icons used in Editor Toolbar package.
+toolbar.res - All the icons used in Editor Toolbar package.
 
 
 How to update the image resources:
@@ -11,7 +11,7 @@ Creating a lazarus resource can easily be done by the lazres program.
 If you have not yet compiled lazres, go to the tools directory and type make.
 
 
-[ toolbar.lrs ]
+[ toolbar.res ]
 
 cd <packagedir>/images/
 <lazarusdir>/tools/lazres ../toolbar.res @toolbar.txt