Question: Using with(plots) and with(plottools), how do you change the color of the line enclosing the disk?

Using with(plots) and with(plottools), how do you change the color of the line enclosing a disk? I can change the line style of the line, but I can't figure out how to change the color of the line. I didn't find anything in plot options that would fit my purpose.

how_do_i_change_the_color_of_the_line_around_a_disk_while_using_plottools.mw

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