I'm using QGIS 2.8.3-Wien in an Ubuntu14. My problem is the following:
I'm using the OpenStreetMap tiles to draw maps of some specific regions. The problem is that, for some urban/rural regions, these tiles offer very little information at non-urban regions.
By using the OCM Landscape layer, I can get more landscape information for rural areas, although the infos for urban areas is poorer.
Finally, I though I could merge both layers by setting some level of transparency on it.
However, QGIS does not offer a properties dialog for this kind of layer.
Is there any way of setting transparency for a tiles layer?