Themes

Customize the look of your Sudoku experience with our collection of themes.

Changing Themes

  1. Click the Settings icon in the navigation
  2. Find the Theme section
  3. Browse available themes
  4. Click to apply instantly

Your theme choice is saved automatically and persists across sessions.

Theme Categories

Light Themes

Bright backgrounds with dark text. Ideal for:

  • Daytime use
  • Well-lit environments
  • Reduced eye strain in bright rooms

Dark Themes

Dark backgrounds with light text. Perfect for:

  • Nighttime solving
  • Low-light environments
  • Reducing screen glare

Colorful Themes

Unique color palettes that add personality:

  • Nature-inspired greens and browns
  • Ocean blues and teals
  • Warm sunset tones
  • Cool minimalist monochromes

Theme Elements

Each theme customizes:

  • Background colors — Main and secondary backgrounds
  • Text colors — Primary and subdued text
  • Accent color — Highlights, selections, your placed numbers
  • Grid styling — Border thickness and colors
  • Button appearances — Controls and number pad

Creating Contrast

Good themes maintain contrast for:

  • Given numbers vs. your entries
  • Selected cell vs. related cells
  • Conflict highlighting
  • Notes visibility

If you have trouble distinguishing elements, try a different theme.

Accessibility

We've designed themes with accessibility in mind:

  • Sufficient color contrast ratios
  • Clear visual hierarchy
  • Distinguishable states

If you need higher contrast, try dark themes or themes with bold colors that provide strong distinction between elements.

Custom Themes

Want something unique? Check the settings for theme customization options where available.

Matching Your Mood

Many players switch themes based on:

  • Time of day
  • Puzzle difficulty (some prefer calm colors for hard puzzles)
  • Seasonal preferences
  • Simply wanting a fresh look

There's no wrong choice—pick what makes solving enjoyable!

What's Next?