Switches editor to RawGfx (raw graphics) mode.
Switching to RawGfx mode will preserve the cursor's file offset, however it will be aligned to the nearest pixel (alignment depends on the selected color format, see RawGfx|View|ColorFormat).
Linear and rectangular selections are preserved, if the selected file area can be represented with the alignment constraints of the selected color format. If a selection is discarded the cursor will be set to the selection's start offset. For rectangular selections this corresponds to the top-left corner.
See also: Editor Modes RawGfx Mode Button Mode|RawGfx