Matrix visual - Formatting (rows format differently)

Hi DutchMark,
Thank you for posting your query in Microsoft Fabric Community Forum. Also, thanks to  FBergamaschi  for those inputs on this thread. 

Green underline not coming fully to the left this usually happens because the Matrix adds indentation when there are multiple fields in the Rows area. You can try turning off the Stepped layout under Row headers –> options  and check if that makes the lines align properly.

Bold only for “Total” rows  At the moment, Power BI formatting applies bold to all rows or all subtotals. There isn’t a direct option to bold only “Total” rows. A workaround many people use is conditional formatting on the values for example, making font weight bold only if the row contains “Total”. That way you can highlight just those rows.

Right now there’s no one-click setting for this, so conditional formatting is the best way

Hope this helps if you have any queries we are  happy to assist you further.
Best Regards,
Harshitha.