Pushing to get one last significant update in before Apple restricts the Mac App Store to apps that can be sandboxed, Stairways Software has released Keyboard Maestro 5.3 with a number of image manipulation and mouse click actions added to the powerful automation utility. On the image front, Keyboard Maestro 5.3 now enables you to create new images; flip, rotate, resize, and crop images; create images out of composites of images, styled text, and shapes; find an image on your screen; and capture one or all screens or a selected window. Enhanced mouse click actions include support for double and triple clicks, dragging with any button, and clicking relative to the center of a window, screen, or image. You can also now type the word APPLICATION (in all caps) within menu selections as an alias for the current application. Other additions include a new Highlight Location action and live reporting of condition test results in action editors. A number of tweaky bug fixes round out the update. ($36 new, free update, $25 upgrade from versions previous to 5.0, 17.5 MB, release notes)
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Show Hidden Files in Open/Save Dialogs in Snow Leopard
In Snow Leopard, if you want to show otherwise hidden files in Open and Save dialog file lists, just press Command-Shift-period. Pressing it again hides the files.