diff --git a/piker/ui/_annotate.py b/piker/ui/_annotate.py
index d7193434..d1ba17c7 100644
--- a/piker/ui/_annotate.py
+++ b/piker/ui/_annotate.py
@@ -25,9 +25,11 @@ import numpy as np
 
 
 def mk_marker(
+
     style,
     size: float = 20.0,
     use_qgpath: bool = True,
+
 ) -> QGraphicsPathItem:
     """Add a marker to be displayed on the line wrapped in a ``QGraphicsPathItem``
     ready to be placed using scene coordinates (not view).
diff --git a/piker/ui/_chart.py b/piker/ui/_chart.py
index 680e76fc..182733f4 100644
--- a/piker/ui/_chart.py
+++ b/piker/ui/_chart.py
@@ -297,7 +297,7 @@ class LinkedSplits(QtGui.QWidget):
 
     def set_split_sizes(
         self,
-        prop: float = 0.28  # proportion allocated to consumer subcharts
+        prop: float = 0.375  # proportion allocated to consumer subcharts
     ) -> None:
         """Set the proportion of space allocated for linked subcharts.
         """