Themes

- Added the new color.blocking to each theme.  In most cases it is the
  same as color.blocked, with something slightly 'bolder' about it, but
  in the more quirky ones it is the same.  These need tweaking.

doc/rc/dark-violets-256.theme

@@ -70,6 +70,7 @@ color.pri.M=rgb304
 color.pri.L=rgb325
 color.tagged=rgb334
 color.blocked=white on rgb101
+color.blocking=white on rgb202
 color.project.none=
 color.tag.none=
 color.alternate=on gray2