SVG

alpha-a.svg

svg_test.py

from kivy.lang import Builder
from kivymd.app import MDApp
from kivy.clock import Clock
import threading
from kivymd.uix.boxlayout import MDBoxLayout

KV = '''
<SVG>:
    md_bg_color: 1,1,1,1
    pos_hint:{"center_x":0.5, "center_y":0.5}
MDScreen:
    SVG:
        id:svg
        svg:"alpha-a.svg"
        size_hint: None, None
'''

from kivg import Kivg

class SVG(MDBoxLayout):
    pass

class Example(MDApp):
    def build(self):
        return Builder.load_string(KV)

    def show_button_icon(self, *args):
        b = self.root.ids.svg
        s = Kivg(b)
        setattr(b, "s", s)
        self.draw_path(s, b.svg)

    def on_start(self):
        t = threading.Thread(target=self.show_button_icon)
        Clock.schedule_once(lambda *args: t.start())

    def draw_path(self, s, icon):
        s.draw(icon, fill=False, line_width=1)

Example().run()