Graphviz: How to change border color

Question

Given a node like so, on a white background

"test" [
    style="filled,dashed"
    shape=box
    color=lightgray
    label="Hello World"
];

How do I make the dashed border black?

Solution 1

I found a solution that works in my case.

"test" [
    style="filled,dashed"
    shape=box
    color=black
    fillcolor=lightgray
    label="Hello World"
];

It was misleading because if fillcolor is not specified, it appears it will default to color.

Solution 2

So You can actually get this with one less line:

"test" [
    style="filled,dashed"
    shape=box
    fillcolor=lightgray
    label="Hello World"
];

In my testing at least including a fillcolor with no color defaults to black border.

Comments

[webwesen]

also : stackoverflow.com/questions/7168549/…

[ryandesign]

Correct. As the documentation says, if fillcolor is not defined, color is used.

[Mike Samuel]

@ryandesign's link is dead. current

[kuropan]

Importantly, the order of the arguments matters here. Specifying color after fillcolor seems to overwrite the filling color (or at least that's the behavior when used with VisJS)