changelog
    
    
    - Mon, 20 Jun 2022 22:40:31 +0300
 
    - by Teemu Piippo <teemu.s.piippo@gmail.com> [Mon, 20 Jun 2022 22:40:31 +0300] rev 243
 
    - Make the grid black on bright backgrounds
 
    - Mon, 20 Jun 2022 22:22:15 +0300
 
    - by Teemu Piippo <teemu.s.piippo@gmail.com> [Mon, 20 Jun 2022 22:22:15 +0300] rev 242
 
    - Substitute circular primitives in during file parsing
 
    - Mon, 20 Jun 2022 22:21:53 +0300
 
    - by Teemu Piippo <teemu.s.piippo@gmail.com> [Mon, 20 Jun 2022 22:21:53 +0300] rev 241
 
    - fix typo