PHP 8 support

v0.0.8

chore: set compatibility with php8 (#3)

Twig 3.0 support

Added Twig ^3.0 support (#1)

* Added support for Twig ^3.0 in composer.json

* Changed 'color_is_dark' test to 'color_dark' in the README's Usage section

* Added Twig ^3.0 support in unit tests

v0.0.6

Update ColorExtension.php

Fixing alias.

Rushing makes mistakes

Better support for Twig v1

v0.0.4

Fix alias

Allow more versions of Twig support

v0.0.3

Allow for Twig version 1.2 + to be installed