...The result is the output image is smaller in size, and is easier to edit.
Pixels are replaced based on threshold rules defined by the user. A rule can be simple using "and", "or", and "(" ")" brackets, or a rule can be written in C#. Examples are provided in the "Rule" combo box. Advanced users can use the C# code option to return Color objects with different Alpha values based on the original pixel color and location.
The "Replacement Color" can use an Alpha value of 0 to make those pixels completely transparent.
Requires .NET Framework 4.5.2 or newer. ...