XF 1.5 Increase black bar separating posts


Hi guys

I need a bit of help to increase the black bar (dotted line) separating the posts. Anyone know where I would normally do this please?

In the default style, the line between posts is solid and light blue, which is controlled via Style Properties -> Message Layout -> Message Container: Border Top

The dotted line in the default style is for signatures and is controlled by Style Properties -> Message Elements -> Signature: Border Top
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