Hessu, who runs aprs.fi, kindly provided the following iinformation:
"The symbol set currently does not have any of these “extended” symbol graphics (additional symbols for overlays), but they could be added, if someone would provide suitable graphics. There are two main requirements:
1. The symbols need to be in vector format (SVG, or .ai), with proper transparency/alpha where applicable, and they must be still recognizable when scaled down to a small 24x24 bitmap.
2. The licensing must be documented and permissive. There must be written/published permission from the author (or other owner of rights, such as the SOTA organisation in this case, if the auther gave them permission to relicense) to redistribute the copyrighted works and use them elsewhere in free and commercial apps.
The attached symbol is a JPEG image, so it is not useful. It’s not scalable to the necessary different sizes like a vector image. It’d appear blurry in many cases. It’s already blurry on the SOTA web site.
It’s surprisingly lot of work to add these, for a relatively small gain. If someone can provide useful symbol graphics meeting the two requirements above, I can add them at some point. Otherwise I’ll concentrate on some higher-priority items at this time."
Would someone be able to help with “requirement 1”, and create a file based on the logo below in vector format ?
If so, I am confident the “requirement 2” will not be a blocking issue.