Website starts with the following theme color:
<meta name="theme-color" content="#ffffff">
then switching to #a6a6a6 dynamically (e.g because of showing throbber) works, but back to #ffffff is broken.

If theme color is changed dynamically (e.g. by Javascript), toolbar should be always updated as well.
0.99.128.2.1.1-rc (WebKit 619.1.11.111.2)
Sequoia (15)