try1

# guizero - Hero name generator
from guizero import App, Text, ButtonGroup, Combo, PushButton, TextBox, ListBox, CheckBox, Picture, Box
app = App(title="Hero-o-matic",  width=500, height=430)

# Function definitions for your events go here.
def make_hero_name():
    adjective = bgp_adjective.value
    colour = '-'.join(listbox.value) if listbox.value else ''
    animal = cmb_animal.value
    gender = btg_gender.value
    hero = adjective + " " + colour + " " + animal + " " + gender
    lbl_output.value = "You are... The " + hero + "."

def toggle_mode():
    app.text_color = "black" if checkbox_mode.value == 0 else "white"
    box1.bg = "#ccff00" if checkbox_mode.value == 0 else "#880000"
    box2.bg = "#99ff33" if checkbox_mode.value == 0 else "#660022"
    box3.bg = "#66ff66" if checkbox_mode.value == 0 else "#440044"
    box4.bg = "#33ff99" if checkbox_mode.value == 0 else "#220066"
    box5.bg = "#00ffcc" if checkbox_mode.value == 0 else "#000088"

# Your GUI widgets go here
#picture = Picture(app, image="201908.png")

box2 = Box(app, align="top", width="fill", height = 50, border=1)
message2 = Text(box2, text="Coose one or more colour")
listbox = ListBox(box2, items=["blue", "orange", "green", "red", "yellow", "purple", "white"], multiselect=True, scrollbar=True, width=200, height=60)
box2.bg = "#99ff33"

box3 = Box(app, align="top", width="fill", height = 50, border=1)
message3 = Text(box3, text="Pick an animal")
cmb_animal = Combo(box3, options=["Aardvark", "Badger", "Cat", "Dolphin", "Velociraptor"], selected="Aardvark", width=20)
box3.bg = "#66ff66"

box6 = Box(app, align="bottom", width="fill", height = 30, border=1)
checkbox_mode = CheckBox(box6, text="Dark mode", align="right", command=toggle_mode)

box5 = Box(app, align="bottom", width="fill", height = 100, border=1)
btn_make_name = PushButton(box5, text='Make me a hero', command=make_hero_name)
lbl_output = Text(box5, text="A hero name will appear here")
box5.bg = "#00ffcc"


box1 = Box(app, align="left", width="250", height = 200, border=1)
message1 = Text(box1, text="Choose an adjective")
bgp_adjective = ButtonGroup(box1, options=["Amazing", "Bonny", "Charming", "Delightful"], selected="Amazing")
box1.bg = "#ccff00"

box4 = Box(app, align="right", width="300", height = 200, border=1)
message4= Text (box4, text="Choose a gender:")
btg_gender = ButtonGroup(box4, options=["Girl", "Boy", "Woman", "Man"])
box4.bg = "#33ff99"

# Show the GUI on the screen, start listening to events.
app.display()