pen size bug fix
@@ -58,7 +58,7 @@ class NodeScene(QtWidgets.QGraphicsScene):
self._draw_grid(painter, rect, pen, grid_size * 8)
# fix border issue on the scene edge.
- pen = QtGui.QPen(bg_color, 1)
+ pen = QtGui.QPen(bg_color, 2)
pen.setCosmetic(True)
path = QtGui.QPainterPath()
path.addRect(rect)
