2 of 2 Removed the second image since only the first one is needed for this question

“Windows Update” text using strange characters

I'm seeing strange characters used to render the words "Windows Update". View the screenshots below to see what I mean.

Is this a known 'easter egg' from devs or is something else going on?

Model: Lumia 640 XL LTE

OS build: 10.0.15223.0

Language: English (United Kingdom)

Settings menu