https://code.visualstudio.com/api/references/theme...
в глобальный
settings.json можно добавить такую секцию и поменять цвет у всех(
почти) элементов и подсветку кода
"window.autoDetectHighContrast": false,
"window.menuBarVisibility": "compact",
"debug.console.fontSize": 10,
"workbench.editor.enablePreview": false,
"workbench.preferredHighContrastColorTheme": "Atom Material Theme",
"workbench.preferredLightColorTheme": "Default Dark+",
"workbench.colorCustomizations": { <----- theme color settings )
"foreground": "#cccccc",
"focusBorder": "#00807a",
"selection.background": "#007974",
"scrollbar.shadow": "#000000",
"activityBar.foreground": "#e6e6e6",
"activityBar.background": "#1c2323",
"activityBar.inactiveForeground": "#ffffff66"
},