anchor.diff:        cLineStateSaved: XColor.FromColor(Ed.Colors.StateSaved);
         else Continue;
       end;
  -    FMicromapBmp.FillRect(GetItemRect(0, i, i, markLeft), XColor);
  +    FMicromapBmp.FillRect(GetItemRect(0{column_0}, i, i, markColumn), XColor);
     end;
   
     //paint selections
  
positive.code:     Result:= Ed.RectMicromapMark(AColumn, NLine1, NLine2, ARect);
      OffsetRect(Result, 0, -ARect.Top);
      case AMarkPos of
        markLeft:
          begin
            Result.Left:= 0;
            Result.Right:= 0 + NWidthSmall;
          end;
        markRight:
          begin
            Result.Right:= ARect.Width;
  
negative.code:     column_0: width 50% of char cell, it's not used
      column_1: width 50% of char cell, it's used for plugins marks
    and 2 edge columns:
      right_edge: width 50% of char cell, it's used for selections
    so, for different micromap rect widths, some columns may overlap, e.g. right_edge and column_1
  }
  type
    TAppMicromapMarkPos = (markColumn, markFull, markRight);
  const
    cTagOccurrences = 101; //see plugin 'Highlight Occurrences'
    cTagSpellChecker = 105; //see plugin 'Spell Checker'
  