kivy: show status with color. show inflight attempts.

electrum/util.py

@@ -85,6 +85,15 @@ PR_PAID     = 3     # send and propagated
 PR_INFLIGHT = 4     # unconfirmed
 PR_FAILED   = 5
 
+pr_color = {
+    PR_UNPAID:   (.7, .7, .7, 1),
+    PR_PAID:     (.2, .9, .2, 1),
+    PR_UNKNOWN:  (.7, .7, .7, 1),
+    PR_EXPIRED:  (.9, .2, .2, 1),
+    PR_INFLIGHT: (.9, .6, .3, 1),
+    PR_FAILED:   (.9, .2, .2, 1),
+}
+
 pr_tooltips = {
     PR_UNPAID:_('Pending'),
     PR_PAID:_('Paid'),