Theory Backgrounds | Page 4

Browse 202+ Theory Backgrounds to download free for any screen

You are looking at 202 Theory Backgrounds. Use one for a video call, a webinar backdrop or a recorded talk. You do not need an account to save one. Keep scrolling — the collection runs deeper than the first screen.

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Surreal space scene with skull dinosaur spaceship and planet glowing dna strands.

Theory
Businesswoman biting green apple with thought bubbles floating around her at desk.

Theory
Young scientist surrounded by scientific equations and symbols with a lightbulb above.

Theory
A smiling cartoon brain in meditation pose with hands in prayer position.

Theory
A person leaps over waves under a glowing sun with flowering trees on either side.

Theory
Two stylized human profiles facing each other in a swirling rainbow of colors.

Theory
Abstract digital brain network with colorful nodes and lines.

Theory
Two profile silhouettes one with a messy brain the other with a clear brain.

Theory
Woman in robes watching cats play with floating golden orbs under a cloudy sky.

Theory
Solid pink background for wallpaper use.

Theory
A stylish K-pop artist with platinum hair and chains against a fiery backdrop.

Theory
Futuristic armored warrior fighting in a neon city with red blades and fire.

Theory
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A single illuminated lightbulb hanging among unlit bulbs in a dark blue space.

Theory
Two men posing with peace signs under decorative yellow flowers on ceiling.

Theory
$Businesswoman using calculator and phone at office desk with financial charts. — Theory Background$
Businesswoman using calculator and phone at office desk with financial charts.

Theory
An academic article explaining intrinsic and extrinsic literary criticism theories.

Theory
$Isometric digital icons for education science and technology connected to a laptop. — Theory Background$
Isometric digital icons for education science and technology connected to a laptop.

Theory
$Person studying math on laptop with pencil and notebook at wooden desk — Theory Background$
Person studying math on laptop with pencil and notebook at wooden desk

Theory
Steins;Gate anime poster with three characters and glowing elements.

Theory
Hand holding glowing digital globe with floating tech icons.

Theory
A 3D rendered molecular model with black spheres and silver rods on a dark blue background.

Theory
Scientific lab equipment with colorful liquids and molecular models on a reflective surface.

Theory