Hi cetinsert,
Thank you for the feedback ! The issues will be fixed in our next release. We constantly update the components and new CSS variables could be introduced while others might be renamed/removed. So we will update the documentation and try to keep it up to date. Regarding your 2nd and 3rd question the taskColumns can be removed by setting taskColumns = []. Also if you want to hide the task tree container just set `treeMin = ‘0px’ and ‘treeSize = ‘0px’. That will set the min and size of the TaskTree to 0.
Best Regards,
Smart HTML Elements Team