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WhatsApp Themes and Fonts: A Beginner Guide to Mod Customisation

How to change themes, fonts and colours in WhatsApp mods without hurting readability, plus dark mode tips and how to undo a look you do not like.

· 4 min read

Changing the look of a chat app is one of the main reasons people try a WhatsApp mod. JTWhatsApp lets you change themes, fonts, colours and styles across the whole app, and GB WhatsApp offers themes through its PlusMODs settings. That freedom is fun, but it is also easy to end up with a screen that is hard to read at night or in bright sunlight.

This guide covers what the official app already offers, how to approach customisation in a mod, and how to keep things readable. Remember that both mods are unofficial, are not affiliated with WhatsApp or Meta, and using them can lead to account restrictions. A theme does not change that, so keep a recent backup before experimenting.

Start with what official WhatsApp already offers

Before installing anything, check whether the official options are enough for you:

  1. Open Settings → Chats → Theme and choose light, dark or the system default.
  2. In the same Chats screen, look for Font size and pick small, medium or large.
  3. Use Chat wallpaper to change the background behind your messages.

For many people, dark mode plus a larger font solves the real problem, which is comfort. If that is you, there is no need to change apps at all.

How theming works in WhatsApp mods

Mods usually add a separate settings area on top of the normal WhatsApp settings. In GB WhatsApp this is the PlusMODs settings, which includes a Themes section. In JTWhatsApp the customisation options sit in the mod's own settings menu. Menu names and layouts differ between versions, so treat any path you read online as a rough guide rather than an exact route.

In general, you will find options to:

  • apply a complete ready-made theme,
  • change individual colours such as the header, chat bubbles and background,
  • switch the font used across the app,
  • adjust styles for the chat list and conversation screen.

A good approach is to change one thing at a time. If you apply a full theme and then tweak five colours, it becomes hard to tell which change caused a problem.

Keep it readable

A striking theme is only useful if you can read your messages quickly. A few simple rules help:

  1. Check contrast. Light text on a light bubble, or dark text on a dark background, is tiring. Your messages and replies should stand out clearly from the wallpaper.
  2. Choose plain fonts for everyday use. Decorative or handwritten fonts look nice in a screenshot but slow down reading, especially in Arabic or other connected scripts. Test your font with a long message in every language you use.
  3. Test in different light. Look at the app outdoors, indoors and in the dark before settling on a look.
  4. Mind the timestamps and ticks. Some colour combinations make small details such as delivery ticks or times hard to see.
  5. Think about others. If you often hand your phone to someone older or with weaker eyesight, a calmer theme and a larger font are kinder.

Dark mode done well

Dark mode can reduce glare in the evening. When you build a dark theme in a mod, avoid pure white text on pure black for long reading; slightly softer colours are usually easier on the eyes. Keep message bubbles a little lighter than the background so conversations keep their shape. If your phone has a system-wide dark mode, check whether the mod follows it or uses its own setting, because the two can conflict.

Undoing a theme that went wrong

If colours or layout look broken, especially after an update, reset rather than reinstall:

  1. For GB WhatsApp version 20, the release notes suggest PlusMODs Settings → Themes → Reset after updating.
  2. For JTWhatsApp, look for a reset or default option inside the mod's theme settings; the exact name varies between versions.
  3. Restart the app and check that your chats, ticks and timestamps are clearly visible.

If you want to compare the customisation options further, the JTWhatsApp page on MODZILO lists what the current version includes.

Key takeaways

  • Try the official Theme, Font size and Chat wallpaper options first.
  • In mods, change one setting at a time so problems are easy to trace.
  • Readability comes first: good contrast, plain fonts and visible ticks and timestamps.
  • Use a reset option instead of reinstalling when a theme breaks.
  • Mods are unofficial and can lead to account restrictions, so keep a backup before experimenting.

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