You can easily make a custom splash screen for Lightroom 5, which you will see every time the program opens. Watch the video above, courtesy of Craig McCormik, for the simple 5 minute tutorial.
Here are the specifics he mentions in the video:
- Max Image Dimensions: 900 x 600
- OSX File Path:
Users/[username]/Library/Application Support/Adobe/Lightroom/Splash Screen
- Windows File Path:
[via ISO 1200]