AnkiThemeTwin

✨ AnkiThemeTwin brings eye-comfort themes with advanced customization to Anki — featuring 13+ built-in themes, custom theme creator, accessibility options, and intelligent theme scheduling.

🎨 Features

Themes

• 7 Eye-Comfort Light Themes:

  • Sepia (Word-like)
  • Sepia (Paper)
  • Sepia (Special • Dr. Mohammed)
  • Gray (Word-like)
  • Gray (Paper)
  • Blue Light (Evening)
  • Olive Green (Natural)

• 6 Accessibility Themes:

  • High Contrast Light - Maximum contrast for visual impairments
  • High Contrast Dark - Dark mode with high contrast
  • Dyslexia Friendly - Optimized for dyslexic readers
  • Deuteranopia Support - Color blindness optimized (red-green)
  • Protanopia Support - Color blindness optimized (red-green variant)
  • Tritanopia Support - Color blindness optimized (blue-yellow)

• Unlimited Custom Themes: Create your own themes with the visual color picker

Customization Features

• Custom Theme Creator — Visual color picker for all theme elements
• Theme Presets — Save and load favorite theme + font combinations
• Theme Preview Gallery — See all themes before applying
• Import/Export Themes — Share themes as JSON files
• Advanced Font Settings:
  • Font family selection
  • Font size: 8-32px with slider or 7 presets (12, 14, 16, 18, 20, 22, 24px)
  • Line height adjustment (100-300%)
  • Letter spacing control (-5px to +10px)

Intelligent Features

• Scheduled Theme Switching — Auto-switch themes based on time of day (morning, afternoon, evening, night)
• Per-Deck Themes — Set different themes for different decks
• Study Session Modes — Optimize display for Focus, Speed, or Detail modes
• Keyboard Shortcuts with enhanced visual feedback:
  • Ctrl+Shift+1-7: Quick theme switching
  • Ctrl+Shift+=: Increase font size
  • Ctrl+Shift+-: Decrease font size
• Animation Settings — Configurable theme transition effects
• Quick Settings Panel — Combined controls for theme, font, and study mode
• Configuration Backup & Restore — Export/import settings with versioning
• Usage Statistics — Track your theme usage patterns

Visual Enhancements

• Smooth Animations — CSS transitions on all interactive elements
• Enhanced Depth — Card shadows and layered effects
• Button Effects — Press animations and elevation changes
• Advanced Focus Indicators — Multi-layer shadows and glow effects
• Gradient Overlays — Modern gradients on buttons, scrollbars, and headers
• Background Patterns — 5 optional patterns (None, Subtle, Dots, Grid, Lines)
• Improved Typography — Heading accents and better text hierarchy
• Modal Animations — Fade-in effects and entrance transitions

Comprehensive Styling

• All Anki Pages: Card reviewer, editor fields, deck browser, card browser
• Buttons & Menus: Enhanced with hover states and focus indicators
• Tables & Lists: Styled headers and alternating row colors
• Input Fields: Custom focus indicators and borders
• Scrollbars: Gradient design with hover effects
• Context-Aware CSS: Optimized styling for each Anki page type

Quality of Life

• Instant Updates — Changes apply immediately to all open views
• WCAG AA Compliant — All themes pass accessibility contrast guidelines
• Easy Switching — Access via Tools → Theme: AnkiThemeTwin
• About Dialog — Project details and GitHub link

📸 Screenshots

Sepia Special	Gray Paper	Blue Light

(Screenshots live in /images in this repo.)

📥 Installation

Option A — from AnkiWeb (recommended)

• AnkiWeb page: https://ankiweb.net/shared/info/1256951397
• Add-on ID: 1256951397
  Open Anki → Tools → Add-ons → Get Add-ons… → paste the ID → Install.

Option B — manual file

1. Download the latest .ankiaddon from Releases.
2. In Anki: Tools → Add-ons → Install from File… and choose the file.
3. Restart Anki.

⚙️ Requirements

• Anki 2.1.55+ (Qt6/PyQt6). Older Qt5 builds are not supported.

🚀 Quick Start Guide

Basic Usage

1. Install the add-on
2. Open Tools → Theme: AnkiThemeTwin
3. Select a theme from the menu
4. Use keyboard shortcuts for quick switching:
   • Ctrl+Shift+1 through Ctrl+Shift+7 for main themes
   • Ctrl+Shift+= to increase font size
   • Ctrl+Shift+- to decrease font size

Advanced Features

Custom Theme Creator

1. Go to Tools → Theme: AnkiThemeTwin → Create Custom Theme...
2. Pick colors for each element using the color pickers
3. Save your theme with a custom name
4. Your theme will appear in the main menu

Theme Presets

1. Configure your perfect theme + font size combination
2. Go to Manage Presets...
3. Save current settings as a preset
4. Quick-load presets anytime

Scheduled Theme Switching

1. Open Scheduled Theme Switching...
2. Enable the feature
3. Set times and themes for morning, afternoon, evening, and night
4. Themes will auto-switch based on the time

Per-Deck Themes

1. Open Per-Deck Themes...
2. Enter deck name and select theme
3. Theme will auto-apply when reviewing that deck

Theme Preview

1. Open Theme Preview Gallery...
2. Browse all themes with visual previews
3. Click "Apply This Theme" to instantly switch

♿ Accessibility Features

For Visual Impairments

• High Contrast Light/Dark: Maximum contrast ratios (WCAG AAA compliant)
• Adjustable Font Sizes: 8-32px range with preset options
• Custom Letter Spacing: Improve readability with adjustable spacing

For Dyslexia

• Dyslexia Friendly Theme: Yellow background proven to reduce reading difficulty
• Increased Line Height: Adjustable up to 300%
• Custom Font Support: Use OpenDyslexic or other specialized fonts

For Color Blindness

• Deuteranopia Support: Optimized for red-green color blindness
• Protanopia Support: Alternative red-green optimization
• Tritanopia Support: Optimized for blue-yellow color blindness

All accessibility themes maintain high contrast and readability while accommodating specific visual needs.

🎯 Theme Recommendations

By Environment

• Bright sunlight / Outdoor: Gray (Paper) or Sepia (Paper) — darker backgrounds reduce glare
• Office / Indoor lighting: Sepia (Word-like), Gray (Word-like), or Sepia (Special)
• Evening / Low light: Blue Light (reduces eye strain)
• Extended study sessions: Sepia (Special), Olive Green — warm, natural tones reduce fatigue

By Device

• LCD screens: Any theme works well
• High-brightness displays: Sepia or Gray themes to reduce eye strain
• E-ink displays: Gray (Word-like) or Gray (Paper) for best readability

By Preference

• Warm tones: Sepia (Word/Paper/Special), Olive Green
• Cool tones: Gray (Word/Paper), Blue Light
• Maximum contrast: Gray (Paper)
• Soft on eyes: Sepia (Special), Blue Light

Font Size Recommendations

• 14px: For larger screens (24"+) or users who prefer more content per page
• 16px: Default, optimal for most users and screen sizes
• 18px: Better for extended reading sessions or smaller text in cards
• 20px: For accessibility, visual impairment, or users who prefer larger text

🧰 Troubleshooting

• Colors didn’t change? Restart Anki, and ensure no other theming add-on overrides styles.
• You can switch any time from Tools → Theme: AnkiThemeTwin.
• Problems or feature requests? Open an issue on GitHub (link below).

🔗 Links

• AnkiWeb: https://ankiweb.net/shared/info/1256951397
• GitHub Repository: https://github.com/MohammedTsmu/AnkiThemeTwin
• Issues (support): https://github.com/MohammedTsmu/AnkiThemeTwin/issues

📝 Author

Developed with 💻 + ☕ by Dr. Mohammed.
Feedback, issues, and contributions are welcome on GitHub.

📚 References

• Anki add-on hooks (CSS injection via webview_will_set_content)
  https://addon-docs.ankiweb.net/hooks-and-filters.html
• Packaging & sharing add-ons (.ankiaddon zip format)
  https://addon-docs.ankiweb.net/sharing.html
• Installing add-ons from Anki (Get Add-ons / Install from file)
  https://docs.ankiweb.net/addons.html
• Qt Style Sheets (QSS) for widget theming
  https://doc.qt.io/qt-6/stylesheet.html
• WCAG 2.1 contrast guidance (readability)
  https://www.w3.org/WAI/WCAG21/Understanding/contrast-minimum.html
• Word Immersive Reader (background/page color)
  https://support.microsoft.com/en-us/office/use-immersive-reader-in-word-a857949f-c91e-4c97-977c-a4efcaf9b3c1