1. Changes you need to do before using softwre

   1. First you have to install library

      1.  pip install datetime
      
      2.  pip install tkcalendar
      
      3.  pip install ttkwidgets
      

   2. Rename the location of the database and the icons in all the files According to your computer path

   3. rename the location of icons used in the file According to you computer path

   4. Also can change the size of the window according to your need and want

2. If your doing for contribution to open source project then you can

   add the icons to the windows title bar
   
   enhance any type of functionality
   
   can create a more attractive gui