Custom font in Power BI

Hi, I am trying to add a custom font (in this case Adelle BS Office Regular) to PBI desktop by adding it to the jason theme file.
However it does not seem to work. The theme file is added sucessfully and the custom font can be picked in the selection list but report is using another font (my guess reverting to a default font, i have tested a dummy font name and got the same result).
What can possibly be wrong? I have read that "If the PC has not installed the font, the font cannot be displayed." but in my case I have the font available in word/excel also I checked the the font is available in "C:\Windows\Fonts" folder.

It would be a great help if someone could help me here.