1let element = document.querySelector('.preset');
2let style = getComputedStyle(element);
3let bg = style.backgroundColor;

1public static Dictionary<string, object> DictionaryFromType(object atype)
2{
3    if (atype == null) return new Dictionary<string, object>();
4    Type t = atype.GetType();
5    PropertyInfo[] props = t.GetProperties();
6    Dictionary<string, object> dict = new Dictionary<string, object>();
7    foreach (PropertyInfo prp in props)
8    {
9        object value = prp.GetValue(atype, new object[]{});
10        dict.Add(prp.Name, value);
11    }
12    return dict;
13}
14