Zirto is a WordPress Charity theme which is retina ready and is innate with CSS3 and HTML 5. It is the theme for any kind of non-profit websites. It is totally responsive and has a Visual composer drag and drop page builder.
Price : $44
The one click demo facility allows you to use the same and saves you a ton of time. You can also make any changes that you might want.
The theme comes with a good admin panel which can be changed with the overall option of color, social, theme, logos etc. The color picker lets you choose unlimited vibrant colors. It also has lots of Google fonts which can be customized. It also has a large collection of icons.