Why no print-color-mode attribute?

[alexflint]

I'm wondering how to request color printing using this library. From this page, it seems like I set the "print-color-mode" attribute to "color" in the request. However, I didn't find the string "print-color-mode" anywhere in this library, leading me to think that maybe I shouldn't hard-code it in my own application either. Why isn't that string anywhere in this library?

[phin1x]

The initial purpose of this library was build to manage cups server and not to interact with printers. interacting with printers works (its the same protocol) but some features and constants are missing (like color mode). feel free add the constant to the library (pr) or add it in your code.