Developer credits
Git commits in Moodle 3.8.x by M Kassaei
commit 72d387254a6ca81a91a127424167c00b60a90cbd Author: M Kassaei <m.kassaei@open.ac.uk> Date: Fri, 07 Jun 2019 21:02:10 +0800 Tag: v3.8.0-beta MDL-65840 qtype_ddmarker: coordinates of cirle shape