avoid warning in plot_trajectories

Author: katosh

README.md

@@ -73,6 +73,9 @@ ____
 Release Notes
 -------------
 
+ ### Next Release
+ * Avoid warning in `plot_trajectories`
+
  ### Version 1.4.2
  * Fix "lightgray" error in `plot_trend`
  * Address pygam incompatibility with newer scipy versions (automatic skip in tests, user warnings)

src/palantir/plot.py

@@ -2437,7 +2437,7 @@ def plot_trajectories(
                 ax.scatter(
                     umap[branch_mask, 0],
                     umap[branch_mask, 1],
-                    c=colors_mapping[branch],
+                    color=colors_mapping[branch],
                     label=f"Branch {branch}",
                     **scatter_kwargs,
                 )