settings.json

"workbench.colorCustomizations": {
	"[FireFly Pro]": {
		"activityBar.foreground": "#ff0000",
		"activityBarBadge.background": "#ff0000",
		"badge.background": "#ff0000",
		"breadcrumb.focusForeground": "#ff0000",
		"button.background": "#ff0000",
		"editor.inactiveSelectionBackground": "#ff0000",
		"list.activeSelectionForeground": "#ff0000",
		"panel.border": "#ff0000",
		"panelTitle.activeBorder": "#ff0000",
		"progressBar.background": "#ff0000",
		"tab.activeForeground": "#ff0000",
		"textLink.foreground": "#ff0000",
		"activityBar.activeBorder": "#ff0000",
		"activityBar.dropBorder": "#ff0000",
		"activityBar.inactiveForeground": "#ff000066",
		"extensionBadge.remoteBackground": "#ff0000",
		"menu.selectionForeground": "#ff0000",
		"notebook.cellBorderColor": "#ff000066",
		"notebook.cellHoverBackground": "#ff000033",
		"notebook.focusedCellBackground": "#ff000066",
		"notebook.outputContainerBackgroundColor": "#ff000066",
		"notificationLink.foreground": "#ff0000",
		"panelSection.border": "#ff0000",
		"statusBarItem.remoteBackground": "#ff0000",
		"terminal.border": "#ff0000",
		"foreground": "#ff0000"
	}
}