Use case or problem
Currently, the applyScroll() method of MarkdownSubView (and hence MarkdownPreviewView etc) accepts only scroll: number parameter (which I assume to be a line number rather than a screen coordinate).
When it is called, the view scrolls so that the specified position comes to the top of the view.
But in many use cases of mine, I want it to come to the center position of the view.
Proposed solution
Add a center: boolean parameter to applyScroll.
Current workaround
Currently, I have to do a little tricky thing to achieve this (link):
// view is a MarkdownView, and position is a Pos
// previewMode.applyScroll(position.start.line) doesn't center-align the target block,
// so we have to do it manually.
const renderer = (view.previewMode as any).renderer as any;
// find the div corresponding the target block
const div = Array.from(renderer.sizerEl.querySelectorAll<HTMLElement>(':scope > div'))
.find((div) => renderer.getSectionInfo(div)?.lineStart === position.start.line);
if (!div) return;
renderer.highlightEl(div);
div.scrollIntoView({ block: 'center' });