switch to matplotlib t_hex function

app.py

@@ -2,19 +2,18 @@ import gradio as gr
 import numpy as np
 import matplotlib.pyplot as plt
 from matplotlib.animation import FuncAnimation
+from matplotlib.colors import to_hex
 import librosa
 import tempfile
 
-def rgba_to_hex(r, g, b, a):
-    return f'#{r:02x}{g:02x}{b:02x}{a:02x}'
-
 def check_rgba(string:str):
     if '#' in string:
         return string
     else:
         clean_str_list = string.split("(")[1].split(")")[0].split(",")
-        print(clean_str_list)
-        hex = rgba_to_hex(float(clean_str_list[0].strip()), float(clean_str_list[1].strip()), float(clean_str_list[2].strip()), float(clean_str_list[3].strip()))
+        clean_list = [float(i.strip()) for i in clean_str_list]
+        print(clean_list)
+        hex = to_hex(clean_list, keep_alpha=True)
         print(hex)
         return hex