usability improvements

app.py

@@ -165,7 +165,15 @@ class ArxivSearch:
             ),
             paper_bgcolor='black',   # Outside the plotting area
             plot_bgcolor='black',    # Plotting area
-            font=dict(color='white') # Axis and legend text
+            font=dict(color='white'), # Axis and legend text
+            legend=dict(
+                bgcolor='rgba(0,0,0,0)',   # Transparent legend background
+                bordercolor='rgba(0,0,0,0)', # No border
+                x=0.01,  # Place legend inside plot area (adjust as needed)
+                y=0.99,
+                xanchor='left',
+                yanchor='top'
+            )
         )
         if len(reduced_results_points) > 0:
             results_trace = go.Scatter3d(
@@ -175,7 +183,7 @@ class ArxivSearch:
                 mode='markers',
                 marker=dict(size=3.5, color='orange', opacity=0.75),
                 name='Results',
-                text=[f"<br>Snippet: {self.documents[i][:200]}" for i in results_indices],
+                text=[f"<br>{self.documents[i][:100]}" for i in results_indices],
                 hoverinfo='text'
             )
             if not self.embedding == "tfidf" and self.query_encoding is not None and self.query_encoding.shape[0] > 0: