Custom Logo Size

Hello!

I’m attempting to add my custom header into the “upload your logo” section of the Site Branding tab; but my logo keeps appearing so small, even if I play with the size in the software I used to create the logo.

Any tips to make it larger, or could you tell me the exact file size and dimensions of the jpeg or png that I need in order to make the logo the same size as the text appears if using the Site Title feature text box?

Thanks a bunch in advance!

Shannon