App Screenshots

Mac App Store Apps are required to have screenshots, and these images must fit certain criteria, which Apple changes from time to time.  As of today, here are they options they demand:

Although not terribly difficult, I have previously maintained a Photoshop file for each of my Apps, with a stable background color, and a different layer for each screenshot, thus maintaining a clean continuity.  I have no clue if this is important, but I like it.

My latest App update is CalEventer (my first Mac App), and the new screenshot files are 909 x 510 for the Main GUI, and 808 x 668 for the Preferences window.  So, I will use the 1440 x 900 basic size, and load them all as layers. 

I fire up GIMP, patiently waiting for it to scan my entire drive for fonts, and select File --> New, and make the dimensions 1440 x 900.  I saved it in my folder of Support Images, and then selected the foreground color, and made it a tan like shade.  It was then a simple matter of Edit --> Fill with FG Color:

Next, I open up all the screenshots I made as layers (File --> Open As Layers), and I can then easily click them on and off at will.  As I select the ones I use, I can rename the layers with more specificity, albeit not easily.

Then, I export (File --> Export) as PNG, and all is swell: