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Overview

The Theme is a style applied to every component of CometChat. When a style is applied as a theme, every view in the activity or every component in the UiKit will apply each property of the theme that it supports. CometChat theme comprises two key components: Palette and Typography. Palette: The Palette is a singleton class that possesses all the color variables with their default values. It can be used to customize the color scheme of the CometChat theme, including background color, primary and secondary colors, error color, and various levels of accent colors. Typography: Typography, which is also a singleton class, encompasses all the default Text Style’s values. It allows you to customize the text appearances throughout the CometChat theme, such as heading, name, titles, subtitles, text, and captions. s

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Usage

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Palette

The CometChat UI kit provides an easy way to customize the visual appearance of your chat application via the Palette class. This class contains several methods that allow you to modify the default color scheme of your app, imparting a unique look and feel that aligns with your branding or design guidelines. Here’s an overview of the different methods available in the Palette class:
MethodsDescription
background(@ColorInt int color)Change the default background color
gradientBackground(Drawable drawable)Set a gradient background using a gradient resource file
gradientBackground(int[] colorArray, GradientDrawable.Orientation orientation)Set a gradient background using an array of colors and a gradient orientation
primary(@ColorInt int color)Change the default primary color
secondary(@ColorInt int color)Change the default secondary color
error(@ColorInt int color)Change the default error color
accent(@ColorInt int color)Change the default accent color
accent50(@ColorInt int color)Change the default accent50 color
accent100(@ColorInt int color)Change the default accent100 color
accent200(@ColorInt int color)Change the default accent200 color
accent300(@ColorInt int color)Change the default accent300 color
accent400(@ColorInt int color)Change the default accent400 color
accent500(@ColorInt int color)Change the default accent500 color
accent600(@ColorInt int color)Change the default accent600 color
accent700(@ColorInt int color)Change the default accent700 color
accent800(@ColorInt int color)Change the default accent800 color
accent900(@ColorInt int color)Change the default accent900 color
Example To match the theme of your app you will need to set primary , secondary and accent color using Pallate. 
Palette palette = Palette.getInstance();
palette.primary(Color.parseColor("#YourPrimaryColor"));
palette.secondary(Color.parseColor("#YourSecondaryColor"));
palette.accent(Color.parseColor("#YourAccentColor"));
Switching between Light and Dark modes in CometChat is quite simple by manipulating the mode property of the Palette class. 
Palette palette = Palette.getInstance();
palette.mode(CometChatTheme.MODE.DARK);

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Typography

The Typography class provides methods that allow you to change the default text styles in the CometChat theme as per your requirements. Here are some of the methods provided by the Typography class:
MethodsDescription
setHeading(int heading)Use to set Heading text Appearance.
setName(int name)Use to set Name text Appearance.
setTitle1(int title1)Use to set Title 1 text Appearance.
setTitle2(int title2)Use to set Title 2 text Appearance.
setSubtitle1(int subtitle1)Use to set Subtitle 1 text Appearance.
setSubtitle2(int subtitle2)Use to set Subtitle 2 text Appearance.
setText1(int text1)Use to set Text 1 text Appearance.
setText2(int text2)Use to set Text 2 text Appearance.
setCaption1(int caption1)Use to set Caption 1 text Appearance.
setCaption2(int caption2)Use to set Caption 2 text Appearance.
To change Name TextStyle of the UiKit Theme Please refer to the code below : 
Typography typography = Typography.getInstance();
typography.setName(R.style.font);
similarly to change other Text Style of Theme you can refer to the above mentioned method.