Problem:
The get_color() function in the Blur_Layer was not correctly implemented (fix #3389), leading to unexpected behavior when using the Eyedropper tool on blurred areas. Specifically, the color picked by the Eyedropper would not accurately reflect the blurred area, resulting in inconsistencies in the preview.

Solution:
This update improves the get_color() function by introducing an averaging technique. Instead of sampling a single point, the function now samples multiple points around the target position, based on the blur size. This ensures that the color returned is a more accurate representation of the blurred area.

The following changes were made:

• The color is now averaged over a small sample grid (steps = 3), with each point within the grid contributing to the final color.
• This approach simulates a more accurate blurred color, reflecting the visual appearance of the blur effect.

BEFORE:

AFTER: