These are often used as "luma mattes" to reveal video or images with an ink-bleed effect.
: These digital paper kits from MixedMediabyErin on Etsy feature hand-painted textures on heavy-weight watercolor paper. Each pack typically includes 12x12 inch high-resolution (300dpi) JPEGs in both full-color and grayscale for easy recoloring. ink_overlays_pack
: Sellers like ProjectPixels offer comprehensive bundles containing ink splatters, seamless patterns, and distressed edge overlays suitable for digital scrapbooking and junk journaling. These are often used as "luma mattes" to
White Ink Floral Vellum Overlays for 5x7 Cards - Pack of 10 - Etsy ink_overlays_pack
provide pre-printed translucent sheets for wedding invitations and cards.