Good day!
First, I want to thank #D developers for a great product! It is really useful to have lightweight C# IDE. I using #D to teach my friend C# programming.
I try to customize #D GUI as close as possible to VS2015 GUI because it is more intuitive for me.
After few hours, I customized #D highlighting color scheme similar to VS2015, and want to contribute it to the community:
VS2015 highlighting color scheme for SharpDevelop 4.4
VS2015 highlighting color scheme for SharpDevelop 5.1.0
To apply this color scheme you need to unzip it and import to #D:
Tools->Options->Text Editor->Highlighting->"Import highlighting colors"
Unfortunately, not all colors could be customized in #D. In example below the method ToString() must be black, but it is gray because of redundant call.

In the second example "args" is gray instead of black (parameter is never used):

I didn't found where I can customize this color. Could someone explain me, or it is not implemented yet?