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

t3 / theme-color

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