I absolutely love the new material charts!
However, one extremely important feature to me - the ability to get a tooltip no matter where your mouse is hovering on the chart - is missing.
focusTarget: 'category'
Setting focusTarget to 'category' in the past with classic charts is all you would need to accomplish this. I am requesting this functionality in material charts as well.
If you need engineers to help with this, I'm glad to lend a hand. Thank you for making the best charts out there. Great work!