[OSM-dev] Icon transparency (was: How to stop "daviddean" to mess up icons?)

Ulf Lamping ulf.lamping at googlemail.com
Mon Dec 1 22:31:02 GMT 2008

Matthias Julius schrieb:
> Are these icons primarly meant to be for JOSM?

The "classic.small" theme: yes (at least don't know other programs using it)

All other themes (classic.big, svg, ...): no

> If you allow transparency in icons you have a problem anyway since you
> are not in control of the background color.  Or the icons have to be
> designed to be visible on any background (like having an outline).

That's true.

But in reality, users only tend to use a black or a white background (at 
least in JOSM). So if you deal with these two situations you're mostly done.

Interestingly, there's no other problem in this regard reported. Even if 
you have different colours on the map (e.g. green for a park), the icon 
seems to be doing "a good job".

Only black and white backgrounds seems to be problematic ...

Regards, ULFL

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