How to modify the style of legends in tooltips without using a formatter

Question

I can not find a way to modify the default style of legends which in tooltip. enter image description here

I can edit it by using formatter, but it is complex for me when i use multiple ecahrts, so i wanna a easy way to edit it directly

Answer 1

The tooltip spawns a div element. You could try setting formatter to an empty string and modify the div directly.