No, as you can see in my pictures, the ROBLOX Dark in the picture has the exact same font as the other two (‘old theme’ and ‘light’), which isn’t meant to happen. You can see this since the ‘Forum Help’ line in the ROBLOX Dark screenshot IS Gotham, where as the title of the topic isn’t Gotham. This is the bug I’m trying to highlight.
@IJustDavi’s reply above mine also complements this. You can see here that the font used in the display name, Roblox username, and profession tag is different to the player’s description below it. Expected behaviour is the entire player card being in the Gotham font.
They are talking about how the text in the forum when with ROBLOX Dark theme applied, does not share the same font-family as expected, which should be Gotham ScreenSmart.