[[TranslatedPages(outdated=This page is work in progress. Starting point was https://josm.openstreetmap.de/ticket/10246#comment:14)]]
= Defaultpresets Guidelines

Some rough guidelines for the [source:trunk/data/defaultpresets.xml defaultpresets]

== New Tags and Values
Basically we have to make sure that the preset menu isn't too cluttered, because it would get hard to find the useful every-day stuff if we had too many exotic entries. New tags and values should have:
* a proper documentation in the [osmwiki: OSM-wiki]
* decent usage numbers (absolute and by number of mappers)
* Controversial cases (like `contact:phone=*` vs. `phone=*`) need to be decided case by case
* If a features is only mapped by a handful of specialists, it is better suited for an [wiki:Presets#Createnewpresets external preset]. Usually this includes tagging schemes restriced to one specific country, hobby, sport or profession.

**Note**:
* When investigating [https://taginfo.openstreetmap.org taginfo], also check **where** unusual values are used.
 * You can use overpass API to load these object in JOSM and check in the history who created them.

== New Icons
* The preferred file format is svg (for lossless scaling). If this is not possible then png.
* Check if the svg file correctly works with JOSM. There are some svg libraries which do not work with JOSM (the images get deformed). If you have such a file try the following workaround: create a new svg document with Inkscape, copy the svg data to this new file, resize the page to the data and save.
* The icon should identifiable at a size of 16 pixels. This is the size the icons are displayed in the [[Help/MapView|Map View]].
* The license needs to be compatibly to GPL3 (like PD or CC0)