IcoFX is an icon editing application that helps you to edit and necessarily change the icon. There is a huge collection of libraries and from that you can necessarily create the icon of your choice.
Moreover it is easy to convert and image to icons with the help of this software. The data types for the icons are 2, 16, 256, true color and true color + Alpha. The icons can be modified and necessarily changed to transparent, bold and light colors.
There are options to brighten as well darken with the help of sharpen tools. There are more than forty effects and custom filters that can help in designing an icon. The resolution sizes for the icons are available up to 256 x 256.