Added gradient method for generating color scales between two or more…

… colors (#50, #51)

Fix OKLCH parsing, accept both comma and space separated formats

v4.0.0 - PHP 8.1+, OKLCH support, bug fixes

Merge pull request #41 from jaulz/patch-2

fix: use float instead of int to avoid warnings #2

Merge pull request #40 from jaulz/patch-1

fix: use float instead of int to avoid warnings

added PHP 7.3, 7.4 tests back to workflow

Remove PHP 7 support, will only support PHP 8. Added type hinting and…

… return type declarations. Made BaseColor::back() and BaseColor::getColorModelName() public @rv1971. Use non-locale aware output for the alpha value @Jako. Updated .gitignore, and some code refactoring @kudashevs

added new Hexa class, v2.4.0

changed HSL to HSV conversion method, fixes issue #27

added PHP 8.0 to supported versions