Launch options for TextEdit

As my eyesight gets worse, I am finding that I often cannot see the highlight colors in the TextEdit app.  There does not seem to be a way to change the highlight color in the app, but I recall that there are options that can be set when launching an app from Terminal.  So my question is, how can I find a list of these options?  For that matter, where can I find a list of these launch options for any app?