[theme] Draw default separators if specified in theme

fixes #605

bumblebee/output.py

@@ -459,7 +459,7 @@ class WidgetDrawer(object):
             "color": self._theme.fg(widget),
             "background": self._theme.bg(widget),
             "separator_block_width": self._theme.separator_block_width(widget),
-            "separator": True if separator is None else False,
+            "separator": self._theme.default_separators(widget),
             "min_width": None,
 #            "min_width": width + "A"*(len(self._prefix) + len(self._suffix)) if width else None,
             "align": self._theme.align(widget),

bumblebee/theme.py

@@ -176,6 +176,9 @@ class Theme(object):
         """Return the SBW"""
         return self._get(widget, "separator-block-width", None)
 
+    def default_separators(self, widget):
+        return self._get(widget, "default-separators", False)
+
     def _load_wal_colors(self):
         walfile = os.path.expanduser("~/.cache/wal/colors.json")
         result = {}