1. Click on hamburger icon.

2. Click on dashboard tab and open Line Chart in edit mode.

3. The Edit menu box appears as you click on Line chart icon. And a widget gets added in content place automatically in dashboard.

4. In Formatting click on General. In General click on Color & Theme Property

5. Choose Theme: Kelly

6. Click on Preview and Save and Exit.

7. Now, match your Line chart with the below example, it should look like the figure below: