Crediting me helps other artists find this. And it accumulates good karma.
Marbling for the better templates I uploaded recently. Approx. 1600px diameter.
Templates: akili-amethyst.deviantart.com/… akili-amethyst.deviantart.com/… akili-amethyst.deviantart.com/… akili-amethyst.deviantart.com/… akili-amethyst.deviantart.com/…
I would suggest experimenting with its color, rotation, and opacity to get the look you want.
Edit August 23rd: Made the whole thing red for easier color change.
My Photoshop secrets: To adjust the color, go to the top menu> image> adjustments> Hue/saturation. Play around with the sliders until you get what you want. To let more of the rest of your stained glass image show through it, on the right side of the program, click on the arrow next to where it says 'normal'. Usually 'multiply' gets the right effect, but try the other options for a different look. Don't forget about the opacity! That slider is next to the drop-down 'normal' box.
I'll make a tutorial if my description is confusing.
How to export this into brush?
I don't know how to make brushes. But if you're looking for a brush to use for marbling texture, look at my FAQ on my main page. I have a link to the one I used to make this stock.
Is this what You use for Stained Glass?
Yes. You can shift the colors around and change the opacity so it looks good with any project.
I can't seem to adjust the color on this in any program. I tried adjusting the hue/saturation, but there's no change. Do you just put a colored layer over it, or can you actually tweak the color on it?
I've found a really neat way of changing it actually. If you're in photoshop, choose a color and make both of your swatcheson the bottom left corner the same. Then click on the "create new layer or adjustment layer" icon on the bottom right of your screen (It's the one that looks like a half black, half white circle) and select "gradient map." It will make the whole layer one color, and keep the transparent parts.