Feature request #6910
Add a multiband grey option to raster renderer
|Pull Request or Patch supplied:||No||Resolution:||fixed/implemented|
|Easy fix?:||No||Copied to github as #:||16033|
subject has been discussed here [[http://osgeo-org.1560.n6.nabble.com/Multiband-grey-in-master-td5023753.html]].
There is actually no way to switch to grey level using RGB bands, only single band is possible.
Adding a flag option to multiband color renderer would be fine.