Improve visibility of hyphen/dash in the PowerShell ISE theme when typing in the editor

[daviwil]

From @stefanstranger on June 12, 2017 13:26

Please change the setting for the ISE Theme so you can see the dash when interactively typing to:

"colors": {
		"activityBar.background": "#E1ECF9",
		"activityBar.foreground": "#A9A9A9",
		"activityBarBadge.background": "#A9A9A9",
		"editor.lineHighlightBackground": "#add8e6",
		"editor.selectionBackground": "#94c6f7",
		"statusBar.background": "#999999",
		"statusBar.debuggingBackground": "#FF4500",
		"statusBar.noFolderBackground": "#999999",
		"terminal.background": "#012456",
		"terminal.foreground": "#F5F5F5"
	}

Changed editor.lineHighlightBackground setting from #94c6f7 to #add8e6

/Stefan

Copied from original issue: PowerShell/PowerShellEditorServices#511

[daviwil]

From @stefanstranger on June 12, 2017 13:35

Can be deleted published in wrong repo. Check microsoft/vscode#28525

/Stefan

[daviwil]

It actually belongs in the https://github.com/PowerShell/vscode-powershell repo :)