Black avery background (#217)

- add option to make background of the tabs black

domdiv/draw.py

@@ -642,6 +642,12 @@ class DividerDrawer(object):
         if wrapper == "back":
             self.canvas.rotate(180)
 
+        if self.options.black_tabs:
+            self.canvas.saveState()
+            self.canvas.setFillColorRGB(0, 0, 0)
+            self.canvas.rect(0, 0, self.options.labelWidth, self.options.labelHeight, fill=True)
+            self.canvas.restoreState()
+
         # allow for 3 pt border on each side
         textWidth = self.options.labelWidth - 6
         textHeight = 7
@@ -1076,10 +1082,12 @@ class DividerDrawer(object):
             # remember whether we start with odd or even divider for tab
             # location
             pageStartOdd = self.odd
+
             if not self.options.no_page_footer and (
                     not self.options.tabs_only and
                     self.options.order != "global"):
                 self.drawSetNames(pageCards)
+
             for i, card in enumerate(pageCards):
                 # print card
                 x = i % self.options.numDividersHorizontal

domdiv/main.py

@@ -420,6 +420,11 @@ def parse_opts(cmdline_args=None):
         dest="tabs_only",
         help="Draw only the divider tabs and no divider outlines. "
         "Used to print the divider tabs on labels.")
+    group_printing.add_argument(
+        "--black-tabs",
+        action="store_true",
+        help="In tabs-only mode, draw tabs on black background"
+    )
     group_printing.add_argument(
         "--info",
         action="store_true",