I think of pilot charts as useful for planning purposes. I don't see why you would need dimming built in.
The dimming is not specific to the Pilot Charts. Have a look at the chart thread. From now on I will do all chart conversion with a built in dimming palette. No extra work at all. If you don't need it/like it, don't use it.
It is indeed a bit messy with a mix of 7z and zip files. The 7z is the way to go due to superior compression
resulting in smaller files. Just install the Open Source 7z program and you're done. 7-Zip
It will work much the same as your unzip program.
The naming of the files could definitely be improved.The intention was that when loading one ocean area, the charts would appear in the correct order in the chart bar.
Even with a perfect naming scheme there will still be a problem with the 20 chart limit in the chart bar, especially in areas of overlap between two Pilot Chart Areas. See the separate thread dealing with this.
For now, just load one area at a time. It's so easy to load charts in OpenCPN
so there is no need to always load everything you have.
Why not copy the Pilot Charts you need to a directory and then point OpenCPN
to it's location. Once again why load -all- PilotCharts, if you just need a few. Of course better naming would help this process.
Finally, if the Pilot Charts in this form, are useful to you or not, that's up to you.I have just made them available.