Added style sheet

data/lighter.css

@@ -0,0 +1,64 @@
+#main_window
+{
+  background: qlineargradient(x1: 0, y1: 0, x2:0,y2:1, stop: 0 white , stop: 1 #E8E8E8);
+}
+
+QPushButton {
+  color: #777;
+  border: 1px solid #CCC;
+  border-radius: 0px;
+  background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
+  stop: 0 white, stop: 1 #E6E6E6);
+  min-height: 20px;
+  min-width: 30px;
+}
+
+
+#send_button{
+  color: #E5F2FF;
+  border: 1px solid #3786E6;
+  border-radius: 4px;
+  background-color: qlineargradient(x1: 0, y1: 0, x2: 0, y2: 1,
+  stop: 0 #72B2F8, stop: 1 #3484E6);
+  min-width: 80px;
+  min-height: 20px;
+}
+
+#address_input[readOnly=true], #amount_input[readOnly=true]
+{
+    color: #ABABAB;
+    padding: 5px;
+    border-radius: 4px;
+    border: 1px solid #AAA9A9;
+    width: 225px;
+}
+#address_input[readOnly=false], #amount_input[readOnly=false]
+{
+    padding: 2px;
+    border: 1px solid #AAA9A9;
+    font: normal;
+    color: #424242;
+    border-radius: 4px;
+    font-size: 95%;
+    width: 225px;
+}
+
+#valid_address::indicator
+{
+    width: 24px;
+    height: 24px;
+}
+#valid_address::indicator:checked
+{
+    image: url(icons/confirmed.png);
+}
+#valid_address::indicator:unchecked
+{
+    image: url(icons/unconfirmed.png);
+}
+
+#balance_label
+{
+    color: #333;
+}
+