I know the map's background color can be set (or changed?) on the server side; is it possible to do the same from the client side? Trying to match the background color of the map to the encompassing application's styles.
You could try with css. Try overriding the following style:
.map .container { background-color: <color>; }
It worked on my app when I did it in firebug. However, you will want to set up your map symbology so it doesn't "bleed" through. The map I tested it on looked quite terrible because I have a lot of hollow filled and transparent polygons.
Did a hack as a workaround for now...created a graphics layer, added 2 polygons to cover the area above and below the North and South poles, respectively.
You could try with css. Try overriding the following style:
.map .container { background-color: <color>; }
It worked on my app when I did it in firebug. However, you will want to set up your map symbology so it doesn't "bleed" through. The map I tested it on looked quite terrible because I have a lot of hollow filled and transparent polygons.