Trivia (Hollow Knight)

Promotional content

Early Concept Art
A series of art pieces drawn by Ari Gibson, known as "Hungry Bug", they were made after the game Hungry Knight and served as the basis for the creation of the world of Hallownest.

Menu Themes
Menu Themes are used to customize the main menu of Hollow Knight. In addition to their main appearance changes, each one comes with its own unique background sound effect.

The Classic theme is close to the original one that came with the release of the game (slightly lighter than the original theme).

While the Hidden Dreams and  The Grimm Troupe themes were added for their respective updates, the option to customize and switch between the different themes wasn't implemented until the  Lifeblood Update.

The Lifeblood Update also introduced the Lifeblood, Infected, Void and Steel Soul themes; all but Lifeblood had specific unlock requirements that needed to be met in-game. In addition, the Void and Steel Soul themes had a colour desaturating effect that applies to the saves menu.

The Godmaster theme came with its respective expansion along with The Eternal Ordeal theme; the latter of which also required a specific unlock condition. The Eternal Ordeal theme also featured a cover of Zote singing the main menu track that replaces the original music.

Lastly, Voidheart Edition also introduced its own custom theme.

References