Update app.py

app.py

@@ -26,6 +26,11 @@ def hex_to_rgba(hex, alpha=1.0):
     hlen = len(hex)
     return f'rgba({int(hex[0:2], 16)},{int(hex[2:4], 16)},{int(hex[4:6], 16)},{alpha})'
 
+# Colores predefinidos
+predefined_colors = [
+    "#FF5C5C", "#5CCFFF", "#FFA500", "#90EE90", "#9370DB", "#FFD700"
+]
+
 # Sidebar para la configuración del gráfico
 st.sidebar.header("Configuración del Gráfico")
 
@@ -49,7 +54,7 @@ use_multiple_colors = st.sidebar.checkbox("Usar múltiples colores")
 # Seleccionar color(es) para el gráfico
 if use_multiple_colors:
     num_colors = len(y_values.split(","))
-    colors = [hex_to_rgba(st.sidebar.color_picker(f"Color {i+1}", f"#{''.join([hex(x)[2:].zfill(2) for x in np.random.randint(0, 256, 3)])}"), alpha=0.6)
+    colors = [hex_to_rgba(st.sidebar.color_picker(f"Color {i+1}", predefined_colors[i % len(predefined_colors)]), alpha=0.6)
               for i in range(num_colors)]
 else:
     color = hex_to_rgba(st.sidebar.color_picker("Color del Gráfico", "#24CBA0"), alpha=0.6)
@@ -89,7 +94,7 @@ else:
     elif chart_type == "Barras":
         fig = px.bar(data, x="X", y="Y", title="Gráfico de Barras", hover_name="Nombre" if names else None)
         if not use_multiple_colors:
-            fig.update_traces(marker_color=color)
+            fig.update_traces(marker_color=color, marker_line_color='rgba(0,0,0,1)', marker_line_width=2)
     elif chart_type == "Dispersión":
         fig = px.scatter(data, x="X", y="Y", title="Gráfico de Dispersión", hover_name="Nombre" if names else None)
         if not use_multiple_colors:
@@ -116,7 +121,7 @@ else:
     
     # Aplicar múltiples colores si se seleccionó la opción
     if use_multiple_colors and chart_type != "Pastel":
-        fig.update_traces(marker_color=colors)
+        fig.update_traces(marker_color=colors, marker_line_color='rgba(0,0,0,1)', marker_line_width=2)
     elif use_multiple_colors and chart_type == "Pastel":
         fig.update_traces(marker=dict(colors=colors))