---
title: Chat Colors, Wallpaper, and Themes
description: Set color gradients on messages, choose unique wallpapers for individual chats or just set one default background to apply to all chats. Who can see the colors and wallpaper that I chose? Only you. This displays on your screen only.…
url: "https://coolapp.com.kh/support/chat-colors-wallpaper-and-themes/"
updated: "2024-05-29"
category: Features
---

# Chat Colors, Wallpaper, and Themes

Set color gradients on messages, choose unique wallpapers for individual chats or just set one default background to apply to all chats.
Who can see the colors and wallpaper that I chose?
Only you. This displays on your screen only.
Why doesn’t the color of someone’s name in a group chat match their avatar color?
A color is randomly assigned to the name to ensure highest contrast between users in the group. This should improve readability and accessibility.
Follow these steps to manage colors and themes:

Android
iOS
Desktop


Android

Message Bubble Color
Wallpaper
Theme

To change sent message bubble colors:

Decide to edit the default for all chats or edit a specific chat

For default, go to CoolApp Settings  >  Appearance
For a specific chat, go to chat settings


Select Chat Color & Wallpaper > Chat Color
Select a color or make your own

Auto matches the color to the wallpaper
Select the  to create a custom color

Tap Solid or Gradient

For Gradient, select and drag a point to change the direction of the gradient
Tap a point to edit just that color


Drag along the color sliders


Tap and hold on a custom color to edit, duplicate, or delete


Tap Set

For the default, all the chats that previously did not have a specific color will display this change for your phone only
For a specific chat, this change is on your phone only



To set the chat background or wallpaper:

Decide to edit default for all chats or edit a specific chat

For default, go to CoolApp Settings  >  Appearance
For a specific chat, go to chat settings


Select Chat Color & Wallpaper > Set Wallpaper
Choose from photos or select a color
Tap Set

For default, all the chats that previously did not have a specific wallpaper will display this change for your phone only
For a specific chat, this change displays immediately for your phone only



To change the theme:

In CoolApp, tap your profile  >  Appearance > Theme
Pick System, Light or Dark


iOS

Message Bubble Color
Wallpaper
Theme

To change sent message bubble colors:

Decide to edit the default for all chats or edit a specific chat

For default, go to CoolApp Settings  >  Appearance
For a specific chat, go to chat settings


Select Chat Color & Wallpaper > Chat Color
Select a color or make your own

Auto matches the color to the wallpaper
Select the  to create a custom color

Tap Solid or Gradient

For Gradient, select and drag a point to change the direction of the gradient
Tap a point to edit just that color


Drag along the color sliders


Tap and hold on a custom color to edit, duplicate, or delete


Tap Set

For the default, all the chats that previously did not have a specific color will display this change for your phone only
For a specific chat, this change is on your phone only



To set the chat background or wallpaper:

Decide to edit default for all chats or edit a specific chat

For default, go to CoolApp Settings  >  Appearance
For a specific chat, go to chat settings


Select Chat Color & Wallpaper > Set Wallpaper
Choose from photos or select a color
Tap Set

For default, all the chats that previously did not have a specific wallpaper will display this change for your phone only
For a specific chat, this change displays immediately for your phone only



To change the theme:

In CoolApp, tap your profile  > Settings >  Appearance > Theme
Pick System, Light, or Dark


Desktop

Message Bubble Color
Wallpaper
Theme

To change sent message bubble colors:

Decide to edit the default for all chats or edit a specific chat

For the default, go to CoolApp Settings  >  Preferences >  Appearance
For a specific chat, go to chat settings


Select Chat Color
Select a color or make your own

Select the  to create a custom color

Tap Solid or Gradient

For Gradient, select and drag a point to change the direction of the gradient
Select a point to edit just that color


Drag along the color sliders


Double click a custom color to edit, duplicate, or delete


Select Save

For the default, all the chats that previously did not have a specific color will display this change for your desktop only
For a specific chat, this change is on your desktop only



Wallpaper:



Chat background colors are not yet available.



To change the theme:

In CoolApp, tap your profile  >  Preferences > Appearance
Under Theme, pick System, Light, or Dark