diff --git a/piker/ui/_annotate.py b/piker/ui/_annotate.py
index 9228a93a..36765026 100644
--- a/piker/ui/_annotate.py
+++ b/piker/ui/_annotate.py
@@ -26,9 +26,11 @@ 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 1fa0ef2d..5a556cb3 100644
--- a/piker/ui/_chart.py
+++ b/piker/ui/_chart.py
@@ -296,7 +296,7 @@ class LinkedSplits(QtWidgets.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.
         """