How would I go about replicating the following pattern in Photoshop, with a different background color than this gray one?
Of course, it would be best if the pattern could be on its separate layer, so it can be compatible with any background color.
I've tried using the pen/pencil tools to draw some lines and then blurring them and reducing the opacity, but it never looks quite like this.
How can I reproduce this pattern with a background colour of my choice?