set_background_color() function not working

[abhayk001]

[royqh1979]

can u show me the code that set_background_color() fails to work? abhayk001 ***@***.***> 于2021年4月5日周一 下午6:32写道：

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[royqh1979]

you should use clear() or clear_device() to redraw the image after set_background_color()

[abhayk001]

you should use clear() or clear_device() to redraw the image after set_background_color()

Oh thank you!! So sorry for replying late. But why is this an issue? Like, why can't set_background_color() directly work?

[abhayk001]

https://pyeasygraphics.readthedocs.io/en/latest/tutorials/011_image.html#image-transparency-and-composition-mode
I executed this exact code from the docs, with the draw_bus() function inside the same python file, but I got the same output but with white background