b5f7529a_apbooking___Creating_Keepsakes__Blending_Mode
[Effect] Selects the lighter pixels from each image and replaces darker colored pixels with the lighter of the two. This can sometimes result in a new color being created in your blended image. [Blending Mode] 
Lighten
Blending Modes Cheat Sheet | The Best of Digital Scrapbooking | Creating Keepsakes
Blending Mode