Editing with transparent windows

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For editing purposes it can be useful to overlap other windows with map content. It can be done for every window making that window transparent. In many cases using a background imagery option of your editor may be more useful, though.

Make a window transparent on Windows

• Glass2k (free) [do not work with java applications like JOSM]
• AlphaXp Lite (free) [works with JOSM]
• See Through Windows (free) [works on Win7 and with JOSM]

Make a window transparent on Linux

• See your window manager's documentation

Make a window transparent on Mac

• Afloat (free; BSD-style license) [does not work with JOSM, but could be used on Chrom(e/ium) and Safari with iD/Potlatch.]