Google Testing Bolder AMP Logo In Search Results

Google is testing displaying a darker and bolder AMP logo in the mobile search results. Typically the logo is grayed out a bit, but here at least as captured by Mats Tolander on Twitter, Google is testing a darker version.

Here is a picture of the darker version:

Here is the gray version most see:

Let's look at them zoomed in side by side:

Forum discussion at Twitter.