Arrow's thickness in sequence diagrams and skins

+3 votes
asked Jun 27, 2014 in To be sorted by fab (120 points)

Hi everyone PlantUML Community,

Is it possible to modify arrow's thickness by adding simple line in code like :

skinparam sequenceArrowThickness 15

And I have a second question, do you got a link which groups all skins shared by community.

Thanks in advance for your answer,

Best regards

3 Answers

0 votes
answered Jun 12, 2016 by anonymous
Would be nice to see this implemented, seems like asuper easy thing,and most lines are too narrow to see well by default...
commented Jun 19, 2016 by plantuml (294,660 points)
This has been implemented in V8043
0 votes
answered Jun 13, 2016 by plantuml (294,660 points)

With last beta
You can have:

skinparam sequenceArrowThickness 2.5
Alice -> Bob : hello

The default thickness arrow is maybe indeed too narrow.
So we may launch a doodle to see if people would agree to change the default value from 1 (as today) to 1.5 in sequence diagram.

Anyway, thanks for the suggestion!

0 votes
answered Jun 16, 2016 by plantuml (294,660 points)

A pool has been open to slightly increase arrow's thickness for Sequence Diagram

The parameter sequenceArrowThickness is working in beta and will be released in next official version.

commented Jun 4, 2018 by bx
How can such a thickness setting be applied to a single line only? Thanks!
commented Sep 22, 2023 by PH
Same question for me : how to change thickness for just one arrow ?
commented Sep 22, 2023 by The-Lu (63,000 points)

Hello all,

You can now use style for that, as:

.mystyle {
  arrow {
    LineColor blue
    LineThickness 2
a -> b : msg
a -> b <<mystyle>>: msg


commented Sep 22, 2023 by PH
Great !

Any way to increase size of arrow triangle ending ?

Thanks a lot
commented Sep 22, 2023 by The-Lu (63,000 points)