Classic theme: fix port edge

Current implementation fills outest pixels incompletely, making slightly
blured look.

source/patchcanvas_theme.py

@@ -57,6 +57,7 @@ class Theme(object):
         object.__init__(self)
 
         self.idx = idx
+        noPen = QPen(QColor(0, 0, 0), Qt.NoPen, 0)
 
         if idx == self.THEME_MODERN_DARK:
             # Canvas
@@ -337,14 +338,14 @@ class Theme(object):
             self.port_font_state = QFont.Normal
             self.port_mode = self.THEME_PORT_SQUARE
 
-            self.port_audio_jack_pen = QPen(QColor(35, 61, 99), 0)
-            self.port_audio_jack_pen_sel = QPen(QColor(255, 0, 0), 0)
-            self.port_midi_jack_pen = QPen(QColor(120, 15, 16), 0)
-            self.port_midi_jack_pen_sel = QPen(QColor(255, 0, 0), 0)
-            self.port_midi_alsa_pen = QPen(QColor(63, 112, 19), 0)
-            self.port_midi_alsa_pen_sel = QPen(QColor(255, 0, 0), 0)
-            self.port_parameter_pen = QPen(QColor(101, 47, 17), 0)
-            self.port_parameter_pen_sel = QPen(QColor(255, 0, 0), 0)
+            self.port_audio_jack_pen = noPen
+            self.port_audio_jack_pen_sel = noPen
+            self.port_midi_jack_pen = noPen
+            self.port_midi_jack_pen_sel = noPen
+            self.port_midi_alsa_pen = noPen
+            self.port_midi_alsa_pen_sel = noPen
+            self.port_parameter_pen = noPen
+            self.port_parameter_pen_sel = noPen
 
             self.port_audio_jack_bg = QColor(35, 61, 99)
             self.port_audio_jack_bg_sel = QColor(255, 0, 0)