To change the style of your table, you will want to start in the table builder as shown below:
To stripe the rows, you will want to toggle on the "striped rows" option in the bottom right. You will then be able to select the stripe color as shown below:
If you'd like to make a metric or row bold. You will want to click the dropdown next to the respective metric and check the "bold" box. For this example, we are bolding the text for "Total Expenses"