agrego opcion de cambiar colores en el big_number, para la facha

pyLIAF/artiq/applets/big_number.py

+#!/usr/bin/env python3
+
+from PyQt5 import QtWidgets
+
+from artiq.applets.simple import SimpleApplet
+
+
+class NumberWidget(QtWidgets.QLCDNumber):
+    def __init__(self, args):
+        QtWidgets.QLCDNumber.__init__(self)
+        self.setDigitCount(args.digit_count)
+        self.dataset_name = args.dataset
+        self.color = args.color
+        self.bg_color = args.bg_color
+        self.setStyleSheet(f"QLCDNumber {{ \
+                                color:{self.color};\
+                                background-color: {self.bg_color};\
+                                }}")
+
+    def data_changed(self, data, mods):
+        try:
+            n = float(data[self.dataset_name][1])
+        except (KeyError, ValueError, TypeError):
+            n = "---"
+        self.display(n)
+
+
+def main():
+    applet = SimpleApplet(NumberWidget)
+    applet.add_dataset("dataset", "dataset to show")
+    applet.argparser.add_argument("--bg_color", type=str, default="",
+                                  help="color of the number to display")
+    applet.argparser.add_argument("--color", type=str, default="black",
+                                  help="color of the number to display")
+    applet.argparser.add_argument("--digit-count", type=int, default=10,
+                                  help="total number of digits to show")
+    applet.run()
+
+if __name__ == "__main__":
+    main()