How to disable initial animation?

[liborjelinek]

If I set some initial dimensions, Splitpanes does some animation/transition on page load. Even when I don't import "splitpanes/dist/splitpanes.css", the animation is enabled.

It's annoying, and why animate on page load? It's default layout. Is it possible to disable it and just show the defined layout?

<splitpanes class="default-theme">
   <pane size="95">1</pane>
   <pane size="95">1</pane>
</splitpanes>