Image guide file

An image guide file is a text file containing one or more drawing commands which describe guides to overlay on compositing images.

In a compositing viewer pane, open the right side toolbar and click Display Options or press D to open the Display Options window.
Click the Viewport tab.
Use the Image Guide option to set the image guide file to use.

Commands

All coordinates are expressed in pixels.

`color R G B A`	Sets the drawing color.
`box X Y Width Height`	Draws a box at (`X`,`Y`) with the specified `Width` and `Height`.
`rect X1 Y1 X2 Y2`	Draws a box with one corner at (`X1`, `Y1`) and the opposite corner at (`X2`, `Y2`).
`line X1 Y1 X2 Y2`	Draws a line from (`X1`, `Y1`) to (`X2`, `Y2`).
`lines N dX dY X1 Y1 X2 Y2`	Draws `N` lines from (`X1`, `Y1`) to (`X2`, `Y2`), offsetting both coordinate pairs by ( `dX`, `dY`) each time. Use this to draw grids.