Feature request: Support for PHP visbility and static modifiers

[Dmitrev]

PHP has keywords that seem to not be supported in this theme

class MyClass
{
    // --- visibility_modifier
    // |     ---- static_modifier
    // v    v
    public static function doSomething()
    {

    }
}

Ideally they would have a separate color group, but also would be nice to just have them the same color as function (as it is on github)

Current it looks like this: