Cui Zhixia

You can see details on drawing a lesion with MRIcron here:
  https://people.cas.sc.edu/rorden/mricron/stats.html

While I am happy that my legacy tools have proved popular and robust, I have heavy teaching, admin, service and research loads. I have prioritized my efforts on the more recent MRIcroGL. You may want to try that out.
  https://www.nitrc.org/plugins/mwiki/index.php/mricrogl:MainPage#Drawing_Regions_of_Interest