UnityEditor.MaterialKeywordEnumDrawer.SetKeyword C# (CSharp) Method

        private void SetKeyword(MaterialProperty prop, int index)
        {
            for (int i = 0; i < this.keywords.Length; i++)
            {
                string keywordName = GetKeywordName(prop.name, this.keywords[i].text);
                foreach (Material material in prop.targets)
                {
                    if (index == i)
                    {
                        material.EnableKeyword(keywordName);
                    }
                    else
                    {
                        material.DisableKeyword(keywordName);
                    }
                }
            }
        }
    }