%this is the way to redefine styles
% \newpsstyle{mytickstyle}{linewidth=1pt,linecolor=blue}

\renewcommand{\betweenticks}{200}
\bardiagrambegin{9.5}{1000}{2cm}{1}{2}{1cm}{0.01cm}
   \drawlevellines
   \renewcommand{\placenumber}{\overtop}
   \newpsstyle{fillukr}{linestyle=solid,hatchsep=4pt,fillstyle=vlines*}
   \newpsstyle{fillrus}{linestyle=solid,hatchsep=8pt,fillstyle=crosshatch*}
   \newpsstyle{filloth}{linestyle=solid,hatchsep=8pt,fillstyle=hlines*}
   \baritem[style=fillukr]{Kiev}{421}{gray}
   \baritem[style=fillukr]{Odessa}{712}{lightgray}
   \baritem[style=fillrus]{Moscow}{510}{gray}
   \baritem[style=fillrus]{Bryansk}{310}{lightgray}
   \baritem[style=filloth]{New-York}{542}{lightgray}
   %
   % we can call
   %  \diagLegendoptions{yellow}{red}{0.5pt}
   % to produce a legend with yellow background with red frame
   % with linewidth=0.5pt
   %
   \diagLegendbegin{5.6}{980}{4.5}
     \diagLegenditem{during 6 months}{gray}
     \diagLegenditem{during a year}{lightgray}
     \diagLegenditem[style=fillukr]{Ukrainian cities}{white}
     \diagLegenditem[style=fillrus]{Russian cities}{white}
     \diagLegenditem[style=filloth]{other cities}{white}
   \diagLegendend
\bardiagramend{}{\large Stars Fallen}