define main.py

main.py

+import flet as ft
+from theme.colors import Color
+
+def main(page: ft.Page):
+    page.title = "Custom fonts"
+
+    page.fonts = {
+        "Kanit": "https://raw.githubusercontent.com/google/fonts/master/ofl/kanit/Kanit-Bold.ttf",
+        "Open Sans": "fonts/OpenSans-Regular.ttf",
+    }
+
+    page.theme = ft.Theme(font_family="Kanit")
+
+    page.add(
+        ft.Text("This is rendered with Kanit font", color=Color.DARK_BLUE),
+        ft.Text("This is Open Sans font example", font_family="Open Sans"),
+    )
+
+ft.app(target=main, assets_dir="assets")
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