how does transparency work?
Hi,
I'm using an user defined overlay map server. The tiles are png. I tried different setting with "transparency" either checked or unchecked and the opacity set to different values. Apparently these settings do not make any difference.
Here's an example:
The base map is from opentopomaps. The overlay is from openflightmaps. Apparantely the overlay contains:
- regions wich are fully transparent so that the opentopomaps base map can be fully seen
- regions with are partly transparent like the redish highlighted region where the opentopomaps base map can be seen through partly
- regions with are fully opaque like the bold black letters or the blue triangles
what settings would I choose to get the overlay like the black letters with a transparency of for example 50%?