I'm a big fan of the style and layout options available in the Launchpad theme when using webapp builder. When using the "blue" theme (the one with circular icons rather than square icons), you have the option of adding your company logo to the map. The default logo is the one below.
When I add my own logo, that blue background remains inside the circle. Regardless of how big or small I make the file I am uploading. If I give my company logo a white background, AGOL resizes it to a square inside the blue circle.
Is it possible to change this background to just be white?