Accessibility Issues In Dark High Contrast Theme When Using Source Control

[d-01]

Issue Type: Bug

Steps to reproduce:

1. Activate Dark High Contrast theme.
2. Open Explorer panel (Ctrl+Shift+E).
3. Create new workspace in an empty folder.
4. Add a bunch of files (can be empty).
5. >Git: Initialize Repository
6. >Git: Stage All Changes

Expected result:

1. All labels are clearly visible.
   • Contrast: no less then 4.5 (Level AA, according to WCAG 2.1)

Actual result:

1. Poor contrast on tab labels, Explorer items and Open Editors items.
   • Text color: rgb(27, 82, 37)
   • Background: rgb(0, 0, 0)
   • Contrast: 2.28 (according to dev tools and contrast-ratio.com online tool).

Screenshot:

VS Code version: Code 1.67.2 (c3511e6, 2022-05-17T18:15:52.058Z)
OS version: Windows_NT x64 6.1.7601
Restricted Mode: No

System Info

Item	Value
CPUs	Intel(R) Core(TM)2 Quad CPU Q6600 @ 2.40GHz (4 x 2400)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: disabled_off direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on oop_rasterization: unavailable_off opengl: enabled_on rasterization: unavailable_off raw_draw: disabled_off_ok skia_renderer: enabled_on video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled
Load (avg)	undefined
Memory (System)	6.00GB (1.67GB free)
Process Argv	--crash-reporter-id a8433a52-a6c8-40eb-8636-eec7af64dfe2
Screen Reader	no
VM	0%

Extensions: none

A/B Experiments

vsliv368:30146709
vsreu685:30147344
python383:30185418
vspor879:30202332
vspor708:30202333
vspor363:30204092
vstes627:30244334
pythonvspyl392:30443607
pythontb:30283811
pythonptprofiler:30281270
vshan820:30294714
vstes263cf:30335440
pythondataviewer:30285071
vscod805cf:30301675
pythonvspyt200:30340761
binariesv615:30325510
bridge0708:30335490
bridge0723:30353136
vsaa593cf:30376535
vsc1dst:30438360
pythonvs932:30410667
wslgetstarted:30449410
pythonvsnew555:30457759
vscscmwlcmt:30465135
cppdebug:30492333
vsclangdc:30486549

[lszomoru]

@daviddossett, could you please take a look? Thank you!

[daviddossett]

Thanks for the catch, @d-01. Fixed with #150880