diff --git a/graf2d/doc/v600/index.md b/graf2d/doc/v600/index.md
index 9c186af4a4cf8d457c6f74d609ab2e53587af950..0c522f4cb92b5bb7556fa1001d2126d4b9368c14 100644
--- a/graf2d/doc/v600/index.md
+++ b/graf2d/doc/v600/index.md
@@ -151,4 +151,6 @@ file `simple.pdf`.
     standard `"-"` and `"+"`.
 -   Make sure all greek and math symbols are printed correctly by `TTexDump`.
 -   Implement dummy operators `#mbox` and `#hbox` to improve the compatibility 
-    between `TLatex`, `TMathText` and `TTexDump`.
\ No newline at end of file
+    between `TLatex`, `TMathText` and `TTexDump`.
+-   Some operators like `#minus`, `#plus`, `#mp`, `#hbar` etc ... 
+    ignored the color  defined by the operator `#color`. 
\ No newline at end of file