Add option to switch to transparent background on export panel options

[Boldline]

When exporting a file (in any applicable format), I don't see an easy way to return the background color to transparent after it has been changed to some other color. If I am missing it, let me know. My thought would be to add a dedicated "transparent" button next to it so it can be easily reset

[VectorStyler]

@Boldline With image formats that support masks there is a checkbox for this. It is not supported by BMP

[Subpath]

@Boldline

if there is a transparent button or not
is related to the file format

in your case .BMP there is not

here a pic with .PNG format

.
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@VectorStyler
What i dont understand when i export a image,
in this case a .PNG file, that the little Background Window
shows a Transparent Background.

But the exported File has a white Background, only
because the Transparent Flag is not set. I would say
the little Background Window is misleading.

[Boldline]

@Subpath @VectorStyler OK thank you. that makes more sense. Maybe I was confused because the option for transparent was there automatically when i started editing the settings under bmp.