Features:

• Activate the app with global hotkey, which is customizable
• Switch between overlay colors
• Dynamically adjust the opacity of the overlay
• Copy dimensions directly to your clipboard
• Can customize the format of the dimensions to suit your needs
• Take a screenshot of the area beneath the overlay
• Make pixel perfect adjustments with the keyboard

Crosshairs is a menu bar app and has a very minimal interface. Most of the app's features are controlled via keyboard shortcuts. Here's a complete list:

• Esc or Command-H = Hide app
• Command-Shift-2 = Global hotkey to activate the app
• Arrow keys = Move the overlay by 1 pixel
• Shift + arrow keys = Move the overlay by 10 pixels
• Tab = Toggle between the primary/alternate overlay color
• Command + up/down arrow = Increase or decrease the opacity
• Command-C = Copy current dimensions to clipboard
• Delete = Clear the current overlay
• Command-, = Open preferences

• Added inverted overlay mode (shortcut: i)
• Made hotkey activate or deactivate app (instead of just activating it)
• Some minor user interface updates to handles and dimensions bubble to help stand out better
• Crosshairs will no longer deactivate the current app so it works better with apps like Photoshop. Side effect is no custom cursor support. Added preference to return the old way if you prefer.
• Added highlight to menu bar icon to show when app is active
• Added in-app help screen that lists all keyboard shortcut
• Left-click in menu bar icon activates app, right-click (control-click) shows menu
• Fixed bugs with color preference settings not taking effect right away
• Fixed bug with taking screenshots on computers with multiple screens being off
• Ensured overlay always snaps to whole pixels, even during screen zoom, for sharpest possible lines
• Now always showing dimensions outside box and removed option