I've encountered an issue where the CSS styles are not applying when I add my web app to the home screen of an iPhone and launch the app using a shortcut icon. To illustrate, consider the following examples. First, opening the app with Safari.
Below is a screenshot of the same web app opened with an icon on the iPhone menu.
Strangely, the CSS styles do not apply for Melanie Wright in the second image, and the icons for input fields remain white instead of turning orange when I open the web app using the shortcut icon. Here are the meta tags I used to replicate the app-like appearance:
<!-- iPhone Icon -->
<link rel="apple-touch-icon" href="apple-touch-icon.png">
<meta name="apple-mobile-web-app-capable" content="yes">
<meta name="apple-mobile-web-app-status-bar-style" content="black">
Thank you for your time!