Tips on how to make the most of the apps you use at work and at home.
Line. You know what a line is: anything that connects two points. Lines have a couple of important functions in design: separating content, and drawing your eye to a specific place.. Take a look at the MailChimp homepage.A line divides the menu at the top (a.k.a. the navigation bar) from the central focus of the page.
I'm the developer of the Spark Inspector tool you mentioned.
I've done a fair bit of development in Node and I think you might enjoy the Firebug inspector for Firefox, or the Chrome Inspector built into Chrome (https://developers.google.com/chrome-developer-tools/). Both of these need your page to be open in the browser, but if your app is web-based and you can pop it into a standard browser window, you're in luck. (If not, it might be worthwhile making it work in a standard browser—even if it'll end up packaged into an app—so you can debug it!)
Hope that helps,
