Smaller zoom min range

labelme/widgets/zoom_widget.py

@@ -8,7 +8,7 @@ class ZoomWidget(QtWidgets.QSpinBox):
     def __init__(self, value=100):
         super(ZoomWidget, self).__init__()
         self.setButtonSymbols(QtWidgets.QAbstractSpinBox.NoButtons)
-        self.setRange(10, 1000)
+        self.setRange(1, 1000)
         self.setSuffix(' %')
         self.setValue(value)
         self.setToolTip('Zoom Level')