Clear the attributes after displaying an avatar, just in case the

background color is set and the next line (e.g. a blank line) causes a
scroll (thus filling with the background attr).

exec/showmsghdr.js

@@ -75,4 +75,5 @@ show_msghdr();
 if(!(bbs.msg_attr&MSG_ANONYMOUS) && console.term_supports(USER_ANSI)) {
 	var Avatar = load({}, 'avatar_lib.js');
 	Avatar.draw(bbs.msg_from_ext, bbs.msg_from, bbs.msg_from_net, /* above: */true, /* right-justified: */true);
+	console.attributes = 0;	// Clear the background attribute as the next line might scroll, filling with BG attribute
 }
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