Can we create a different config file ?

Hi all,
When we create a web application, by default a web.config file is created in the root folder. We can write custom values in this file.

We normally write in web.config file like this :-

<appSettings>
        <add key="Theme1" value="Akiii"/>        
</appSettings>

And, we get this in our code by using :-

string strName = ConfigurationSettings.AppSettings["Theme1"];

Now my question is can we create a config file with different name like Flower.config file in the root directory ? If yes, then how to refer to this Flower.config file in applications ?

Any help is appreciated
Thanks and Regards
Akiii