The Proportion Guide layer allows for a number of composition guides to be overlaid on the image. The
The available guides presets are Rule of Thirds,Diagonals,Golden Ratio,and Center Cross, and CustomGrid.
Rule of Thirds – Overlays the Rule of Thirds guidelines.
Diagonals – Overlays diagonal guidelines.
Golden Ratio – Overlays the Golden Ratio guidelines
Center Cross – Overlays a center cross guideline.
Custom Grid – Overlays custom grid guidelines. You can specify whereas CustomGrid allows specifying up to 10 custom columns and rows of the grid.
For all the guides there is a Line Width option, which can be controlled via a slider or spinners, as well as a ColorSwatch to control the color of the lines.
For the Custom Grid Rows guides, there are Rows and Columns options to control the rows/columns of the grid.