README

EXT:theme_color (t3/theme-color) is a small TYPO3 extension for changing the backend theme color. You can set one global color for all users and optionally allow users to choose their own color.

It is a lightweight solution for making the TYPO3 backend better match your brand or personal preference.

Features

• set a global backend theme color in the extension configuration
• optionally allow backend users to define their own personal theme color
• user-specific colors override the global color when enabled
• supports TYPO3 backend themes fresh, classic, and modern
• includes a live preview in user settings for supported themes

Requirements

• TYPO3 CMS 14.3 or higher
• PHP 8.2 or higher

Installation

Option 1: Composer

composer require t3/theme-color

Option 2: TYPO3 Extension Repository (TER)

Install the extension from the TYPO3 Extension Repository using the extension key theme_color.

Configuration

Open the extension configuration in TYPO3 and check these two settings:

theme_color

The global primary color for supported backend themes.

Only the #rrggbb format is accepted and stored canonically in lowercase.

Examples:

• #ff8700
• #005fcc

If this field is empty, no global color is enforced.

allow_user_update

Enable this if backend users should be allowed to override the global theme color with their own personal choice.

If enabled:

• a Theme color field is added to backend user settings
• that user-specific value wins over the global extension setting

If disabled:

• only the global color is used
• users can not set an individual theme color

Links

• Git Repository
• Issue tracker
• EXT:theme_color in TER
• EXT:theme_color on Packagist
• The author
• Donate