Breadcrumbs visually shifting while navigating document

[cas--]

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.61.2
• OS Version: Ubuntu 20.04

Steps to Reproduce:

1. Create a document with a lot of breadcrumbs e.g. Markdown using this text https://jaspervdj.be/lorem-markdownum/

2. Narrow VSCode window until breadcrumb scrollbar appears

   
   

3. Move around document with keyboard arrows

Result

The breadcrumb bar visually shifts a pixel or two and back again with every keypress, which is quite distracting. This video only shows it briefly but is more noticeable in editor.

breadcrumb_shifting.mp4

Expected Result

Breadcrumb bar is static when navigating around document with arrow keys

[jrieken]

I am unable to reproduce... @cas-- Does this eventually recover, like when manually scrolling the breadcrumbs bar once?

[cas--]

@jrieken No it doesn't recover with any scrolling in the breadcrumb bar but I just realised that this bug is revealed when a custom window zoom level is set e.g. 0.8

I tested with newly released version 1.62 and it's actually worse since the breadcrumb bar now slowly scrolls to the start of the with every cursor movement then jumps back to the end when typing. Could this regression be a result of this commit e764729