https://github.com/sergev/le-editor/commit/f5582ae199e4c4b80d32e4764715d630203b44f6

Index: src/frames.cc
--- src/frames.cc.orig
+++ src/frames.cc
@@ -242,7 +242,7 @@ void    DrawFrames(void)
    int   action;
    char  sign[4];
 
-   if(hex || View)
+   if(in_hex_mode || View)
       return;
 
    CurrGraphSet=GraphSets[grsetno];
