Thanks for your update.
We have analyzed your query. Please find the below response for your queries.
Query 1: If I want to change x and y's line thicker and different color
You can change the axis line and grid line color by using lineStyle and majorGridLines in axis options.
For more information about grid line customization, kindly find the below documentation link,
Query 2: if i want to set Business Acumen to be bold, is there a way i can do it please?
You can customize the particular text in the axisLabelRender event. For more information about axisLabelRender event, kindly find the below documentation link,
But currently label style changes is not reflecting in axisLabelRender event for polar and radar alone. So we have logged a defect report for this. You can keep track of the bug from the feedback portal below.
If you have any more specification/precise replication procedure or a scenario to be tested, you can add it
as a comment in the portal.
The fix will be available in our upcoming weekly patch release which is expected to be rolled out at 11th June, 2019.