VSCode UI: wierd white line in certain window height

[Colin-XKL]

Type: Bug

When resizing the height of vscode window, sometimes there is a white line at the bottom of the remote dev icon. Check the screenshot below, it's much more clear than text.
I've seen this wierd white line in all vscode releases in the past two months. The bug may had been there for a long time,
Tested Platform: Mac OS

VS Code version: Code 1.80.0 (Universal) (660393d, 2023-07-04T13:39:33.766Z)
OS version: Darwin x64 22.5.0
Modes:

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-9750H CPU @ 2.60GHz (12 x 2600)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: disabled_off direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled metal: disabled_off multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled
Load (avg)	5, 4, 4
Memory (System)	16.00GB (0.04GB free)
Process Argv	--crash-reporter-id eca8c538-4def-46cc-af0e-3f1dacf14c71
Screen Reader	no
VM	0%

Extensions (55)

Extension	Author (truncated)	Version
codesnap	adp	1.3.4
vscode-nginx-conf	ahm	0.1.3
astro-vscode	ast	2.0.18
linehighlightbookmarkvscode	bal	1.0.2
prettier-toml	bod	0.1.0
vscode-tailwindcss	bra	0.9.11
npm-intellisense	chr	1.4.4
path-intellisense	chr	2.8.4
vscode-eslint	dba	2.4.2
vscode-dash	dee	2.4.0
javascript-ejs-support	Dig	1.3.3
gitlens	eam	14.0.1
vscode-html-css	ecm	1.13.1
prettier-vscode	esb	9.19.0
code-runner	for	0.12.0
shell-format	fox	7.2.5
go	gol	0.39.0
vscode-env	Iro	0.1.0
plantuml	jeb	2.17.5
vscode-graphviz	joa	0.0.6
vsc-python-indent	Kev	1.18.0
vscode-github-actions	me-	3.0.1
json	Mee	0.1.2
fluent-icons	mig	0.0.18
vscode-docker	ms-	1.25.2
vscode-language-pack-zh-hans	MS-	1.80.2023070509
python	ms-	2023.12.0
vscode-pylance	ms-	2023.7.10
jupyter-renderers	ms-	1.0.17
vscode-jupyter-cell-tags	ms-	0.1.8
remote-ssh	ms-	0.102.0
remote-ssh-edit	ms-	0.86.0
live-server	ms-	0.4.9
remote-explorer	ms-	0.4.1
lowlight-go-errors	oha	1.3.0
fix-json	oli	0.1.2
vscode-gitignore-generator	pio	1.0.3
quicktype	qui	12.0.46
vscode-xml	red	0.25.0
vscode-yaml	red	1.13.0
vs-code-prettier-eslint	rve	5.1.0
svg-preview	Sim	2.8.3
even-better-toml	tam	0.19.0
vscode-nginx-format	tec	0.0.6
shellcheck	tim	0.32.6
graphviz-interactive-preview	tin	0.3.5
errorlens	use	3.11.1
highlight-matching-tag	vin	0.11.0
intellicode-api-usage-examples	Vis	0.2.7
vscodeintellicode	Vis	1.2.30
vscode-java-pack	vsc	0.25.12
volar	Vue	1.8.4
vscode-todo-highlight	way	1.0.5
vscode-nginx	wil	0.7.2
pretty-ts-errors	yoa	0.4.1

[Colin-XKL]

vscode-ui-bug-screenshot.mov

[hirishu10]

@Colin-XKL HI, It's just a border design that happens when you adjust the height of your vscode editor.

[hirishu10]

Nothing to worry about in your coding :

[glebbash]

Similar thing for me, white line is present consistently on 125% and 175% zoom level in vscode.dev. Very annoying on the dark theme.

Maybe this is related to float rounding somewhere?

The issue is recent (probably from 1.80.x).

OS: Windows 11.