Blue themes

Nord Dark by NaggaDIM

By: NaggaDIM

Big Bang

By: resdek

swimming penguin

By: ナポリタン寿司

Penguins - Aim for the open sea!

By: ナポリタン寿司

Two penguins

By: ナポリタン寿司

Fireworks and Hiroshima Night View（watercolor）

By: ナポリタン寿司

Fireworks and Hiroshima Night View

By: ナポリタン寿司

Starry sky and poles

By: ナポリタン寿司

Trees and a starry sky

By: ナポリタン寿司

Clownfish and sea anemone（watercolor）

By: ナポリタン寿司

Breeze-Light

By: Raven

Breeze-Dark

By: Raven

Modern City theme

By: BraveKBlade7

Hut in a rut

By: Keira1602

Sky And Sea

By: IndexZero

Dogppuccin

By: kenrodri

Darkstalkers Theme

By: Safaia

Satoru Gojo

By: FortBlox

Milky Way

By: resdek

Extreme dark theme - blue

By: Bushek

Simple Nord

By: Manuel

blue

By: masaya

Sea of clouds and starry sky

By: ナポリタン寿司

Starry Skies of Japan

By: ナポリタン寿司