LR gradient mask turns red

Quick answer：

LR gradient mask refers to a gradient blending technique used in image editing, where the transition from one layer to another is controlled by a gradient. This technique is often used to create a smooth blend between two images or to blend an image with a background. The user's question seems to be asking about how to change the gradient mask to a red color. To achieve this, one would adjust the gradient's color settings in the image editing software to red, ensuring that the blend between layers or with the background is done with a red gradient.