test: Improving alpha for readability

app.py

@@ -106,12 +106,7 @@ def draw_interactive_scatter_plot(
     p = figure(plot_width=800, plot_height=800, tools=[hover], title='2D visualization of tweets', background_fill_color="#fafafa")
     colors = factor_cmap("label", palette=[Pallete[n_colors][int(id_) + 1] for id_ in values_set], factors=values_set)
     
-    legend = Legend(source=source, legend_group='original_label', title='Topics ID', click_policy='mute', background_fill_alpha=0.2)
-    # p.legend.location = "right"
-    # p.legend.title = "Topics ID"
-    # p.legend.click_policy = "mute"
-    # p.legend.background_fill_alpha = 0.2
-    
+    # legend = Legend(source=source, legend_group='original_label', title='Topics ID', click_policy='mute', background_fill_alpha=0.2)  
     p.circle("x", "y", size=12, source=source, fill_alpha=0.4, line_color=colors, fill_color=colors, legend_group="original_label")
     p.axis.visible = False
     p.xgrid.grid_line_dash = "dashed"
@@ -119,6 +114,10 @@ def draw_interactive_scatter_plot(
     # p.xgrid.grid_line_color = None
     # p.ygrid.grid_line_color = None
     p.toolbar.logo = None
+
+    p.legend.location = "right"
+    p.legend.title = "Topics ID"
+    p.legend.background_fill_alpha = 0.25
     
     disclaimer = Label(x=0, y=0, x_units="screen", y_units="screen",
                    text_font_size="14px", text_color="gray",