# Set vertex outline width attribute

**URL:** <https://igraph.discourse.group/t/set-vertex-outline-width-attribute/792>\
**Category:** Usage\
**Tags:** Python\
**Created:** [7 July 2021 18:49 UTC](https://igraph.discourse.group/t/set-vertex-outline-width-attribute/792 "2021-07-07T18:49:16Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![amurth](https://yyz2.discourse-cdn.com/free1/user_avatar/igraph.discourse.group/amurth/32/512_2.png) [@amurth](https://igraph.discourse.group/u/amurth)\
**Post date:** [7 July 2021 18:49 UTC](https://igraph.discourse.group/t/set-vertex-outline-width-attribute/792/1 "2021-07-07T18:49:16Z")

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I would like to set the outline thickness of vertices to be thicker than originally shown. I cannot find any list of attributes for how to change the graph visualization. Documenting this list would be very useful.

Essentially I wanted to do this, but cannot find the attribute name.

```auto
g.vs['outline_thickness'] = 2

```

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<div class="post-metadata">

**Author:** ![tamas](https://yyz2.discourse-cdn.com/free1/user_avatar/igraph.discourse.group/tamas/32/1261_2.png) [@tamas](https://igraph.discourse.group/u/tamas)\
**Post date:** [12 July 2021 11:56 UTC](https://igraph.discourse.group/t/set-vertex-outline-width-attribute/792/2 "2021-07-12T11:56:39Z")

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It is called `frame_color` and it is documented along with all the other styling options in the [` __plot__ ` method of the `Graph` object](https://igraph.org/python/doc/api/igraph.Graph.html# __plot__ ) (this is where the execution eventually ends up if you call `plot(g)` on a graph):