Features
Vertical Text Resize
Enable vertical resizing for text elements and control vertical alignment
By default, you can't change height of text elements. Texts are always updating their own height to fit content. To keep a fixed box and fit variable text into it, give the element its own sizing policy; see Text Sizing.
When vertical resize is enabled you can also set vertical align from the text toolbar.
How to enable vertical text resize?
import { setTextVerticalResizeEnabled } from 'polotno/config';
setTextVerticalResizeEnabled(true);