diff --git a/plot.py b/plot.py
index 10018ac..78bc618 100644
--- a/plot.py
+++ b/plot.py
@@ -14,6 +14,16 @@ def plottable(log: list[tuple[float, int]]):
         return np.array([[], []])
 
 
+def format_params(params) -> str:
+    match params:
+        case dict():
+            return '{' + ' '.join(f'{key}={format_params(value)}' for key, value in params.items()) + '}'
+        case list():
+            return f'[{" ".join(format_params(value) for value in params)}]'
+        case _:
+            return json.dumps(params)
+
+
 def plot(fn: str):
     plt.rcParams['figure.figsize'] = [16, 9]
     plt.style.use('dark_background')
@@ -26,7 +36,7 @@ def plot(fn: str):
 
     title = fn
     if (params := jsonified.pop('params', None)) is not None:
-        title += f' {":".join(map(str, params))}'
+        title += f' {format_params(params)}'
     plt.title(title)
 
     def logplot(plot_function, metric: str, **kwargs):
@@ -36,15 +46,18 @@ def plot(fn: str):
     logplot(plt.plot, 'DelayedResolver:sleep:concurrency')
     logplot(plt.plot, 'ActiveBinaryTree:add:concurrency')
     logplot(plt.plot, 'ActiveBinaryTree:contains:concurrency')
+    logplot(plt.plot, 'FlowStandard:verify_subset:concurrency')
     logplot(plt.plot, 'Stack:list:concurrency')
     logplot(plt.scatter, 'ActiveBinaryTree:add:entry', c='tomato', zorder=100, s=.5)
     logplot(plt.scatter, 'ActiveBinaryTree:add:exit', c='gold', zorder=99, s=.5)
 
     plt.legend()
     plt.show()
+    plt.clf()
 
 
 if __name__ == '__main__':
+    Path('trace').mkdir(exist_ok=True)
     if Path('trace/latest.json').exists():
         plot('trace/latest.json')
     for fp in list(Path('trace').glob('*.json')):