Great plugin, thank you!
For others, who, like me, if you use the shortcode in the page, you will probably want to apply a theme you have created in the admin section. It is very easy, just not documented on the Notes page ;-)
theme="theme_name_here" (NOTE: CaSe SensiTive == true)
[tgw title="Title for twitter widget" subject="Caption for twitter widget" username="Twitter User Name" search="Twitter search string" type="Either (search|list|faves|profile)" list="Twitter List Name" theme="theme_name_here"]