CTAN update: l3backend

[CTAN Announcements]

The LaTeX Team submitted an update to the

                l3backend

package.

Version number: 2021-10-18
License type: lppl1.3c

Summary description: LaTeX3 backend drivers

Announcement text:
----------------------------------------------------------------------

## [2021-10-18]

### Added
- Support for ICC-based color profiles
- `\color_profile_apply:nn`
----------------------------------------------------------------------

This package is located at 
   https://mirrors.ctan.org/macros/latex/contrib/l3backend

More information is at
   https://www.ctan.org/pkg/l3backend

CTAN is run entirely by volunteers and supported by TeX user groups

Please join a user group or donate to one, see https://ctan.org/lugs

------------------------------------------------------------------------

   Thanks for the upload.

     For the CTAN Team
    Ina Dau

--