Editing Pseudo-transparency (section)

===_XROOTPMAP_ID and ESETROOT_PMAP_ID properties===
These properties are used to inform the window where it can find the pixmap used on the root window. Using this information, a client can paint a section of the image (corresponding to the size and position of the window) onto its background, achieving the effect of transparency. This method uses the most [[Computer storage|memory]], but has the advantage of allowing clients to perform any operation, such as [[tinting (graphics)|tinting]] or [[shading]], on the image data.