"selectionHighlight" : Highlight is not obvious

[Icaxwu]

Issue Type: Bug

when the setting "selectionHighlight" enabled, Highlight is not obvious，I hope that the highlighted word is more obvious.

VS Code version: Code 1.28.2 (7f3ce96, 2018-10-17T00:23:51.859Z)
OS version: Windows_NT x64 6.1.7601

System Info

Item	Value
CPUs	Intel(R) Core(TM) i5-4590 CPU @ 3.30GHz (4 x 3292)
GPU Status	2d_canvas: enabled checker_imaging: disabled_off flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: disabled_software rasterization: enabled video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled
Memory (System)	11.91GB (6.17GB free)
Process Argv
Screen Reader	no
VM	67%

Extensions (5)

Extension	Author (truncated)	Version
language-gas-x86	bas	0.0.1
vscode-markdownlint	Dav	0.21.0
lex-flex-yacc-bison	fau	0.0.3
vscode-language-pack-zh-hans	MS-	1.28.2
cpptools	ms-	0.20.1

(1 theme extensions excluded)

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• Rounded selection/highlight corners for find match results. (#58288)
• editor.selectionHighlight causing confusing highlighting noise when searching (#62004)

[miguelsolorio]

I increased the opacity of this color a bit so it can stand out a little better: