D-Pad sneak button has squared corners/stray pixels when 'Swap Jump and Sneak' is enabled

Unlike other buttons that are neatly rounded and consistent, when 'Swap Jump and Sneak' is enabled, the sneak button seems to have these squared corners and stray pixels in each of them.

Here are 2 examples of consistent styling:

Whereas, for the sneak button, it looks "off" and squared: