Decrease color depth to 64K

`Ctrl` + `↑ Shift` + `5`

All hotkeys for PaintShop Pro 2018

Single key shorcuts Ellipse	`Q`
Single key shorcuts Dropper	`E`
Single key shorcuts Crop	`R`
Single key shorcuts Text	`T`
Single key shorcuts Picture tube	`I`
Single key shorcuts Preset shape	`P`
Single key shorcuts Pan	`A`
Single key shorcuts Selection	`S`
Single key shorcuts Flood fill	`F`
Single key shorcuts Retangle	`G`
Single key shorcuts Symmetric shape	`H`
Single key shorcuts Dodge	`J`
Single key shorcuts Pick	`K`
Single key shorcuts Lighten / darken	`L`
Single key shorcuts Zoom	`Z`
Single key shorcuts Eraser	`X`
Single key shorcuts Pen	`V`
Single key shorcuts Paint brush	`B`
Single key shorcuts Move	`M`
Single key shorcuts Zoom out	`-`
Single key shorcuts Zoom in	`+`
Single key shorcuts Help	`F1`
Single key shorcuts Hide palettes	`F2`
Single key shorcuts History	`F3`
Single key shorcuts Tool options	`F4`
Single key shorcuts Materials	`F6`
Single key shorcuts Histogram	`F7`
Single key shorcuts Layers	`F8`
Single key shorcuts Overview	`F9`
Single key shorcuts Learning Center	`F10`
Single key shorcuts Brush variance palette	`F11`
Single key shorcuts Save as	`F12`
Shortcuts with Ctrl Close image	`Ctrl` + `F4`
Shortcuts with Ctrl Window fit to image	`Ctrl` + `W`
Shortcuts with Ctrl Paste as new selection	`Ctrl` + `E`
Shortcuts with Ctrl Free rotate	`Ctrl` + `R`
Shortcuts with Ctrl Mirror vertical	`Ctrl` + `T`
Shortcuts with Ctrl Repeat	`Ctrl` + `Y`
Shortcuts with Ctrl Flip vertical	`Ctrl` + `I`
Shortcuts with Ctrl Open	`Ctrl` + `O`
Shortcuts with Ctrl Print	`Ctrl` + `P`
Shortcuts with Ctrl Select all	`Ctrl` + `A`
Shortcuts with Ctrl Save	`Ctrl` + `S`
Shortcuts with Ctrl Select none	`Ctrl` + `D`
Shortcuts with Ctrl Selections float	`Ctrl` + `F`
Shortcuts with Ctrl Paste as new vector selection	`Ctrl` + `G`
Shortcuts with Ctrl Selections modify feather	`Ctrl` + `H`
Shortcuts with Ctrl Edit mask	`Ctrl` + `K`
Shortcuts with Ctrl Paste as new layer	`Ctrl` + `L`
Shortcuts with Ctrl Undo	`Ctrl` + `Z`
Shortcuts with Ctrl Cut	`Ctrl` + `X`
Shortcuts with Ctrl Copy	`Ctrl` + `C`
Shortcuts with Ctrl Paste	`Ctrl` + `V`
Shortcuts with Ctrl Mirror horizontal	`Ctrl` + `B`
Shortcuts with Ctrl New	`Ctrl` + `N`
Shortcuts with Ctrl Flip horizontal	`Ctrl` + `M`
Shortcuts with Ctrl Zoom out	`Ctrl` + `-`
Shortcuts with Ctrl Zoom in	`Ctrl` + `+`
Shortcuts with Shift Instant effects	`↑ Shift` + `F2`
Shortcuts with Shift Script output	`↑ Shift` + `F3`
Shortcuts with Shift Mixer	`↑ Shift` + `F6`
Shortcuts with Shift Organizer	`↑ Shift` + `F9`
Shortcuts with Shift Save for Office	`↑ Shift` + `F12`
Shortcuts with Shift New window	`↑ Shift` + `W`
Shortcuts with Shift Brightness / contrast equalize	`↑ Shift` + `E`
Shortcuts with Shift Crop to selection	`↑ Shift` + `R`
Shortcuts with Shift Brightness / contrast stretch	`↑ Shift` + `T`
Shortcuts with Shift New mask / hide all	`↑ Shift` + `Y`
Shortcuts with Shift Adjust red / green / blue	`↑ Shift` + `U`
Shortcuts with Shift Image information	`↑ Shift` + `I`
Shortcuts with Shift Load palette	`↑ Shift` + `O`
Shortcuts with Shift Edit palette	`↑ Shift` + `P`
Shortcuts with Shift Full screen mode	`↑ Shift` + `A`
Shortcuts with Shift Image resize	`↑ Shift` + `S`
Shortcuts with Shift Duplicate	`↑ Shift` + `D`
Shortcuts with Shift Gamma correction	`↑ Shift` + `G`
Shortcuts with Shift Hue / saturation / lightness	`↑ Shift` + `H`
Shortcuts with Shift Invert mask / adjustment	`↑ Shift` + `K`
Shortcuts with Shift Colorize	`↑ Shift` + `L`
Shortcuts with Shift Start screenshot	`↑ Shift` + `C`
Shortcuts with Shift View palette transparency	`↑ Shift` + `V`
Shortcuts with Shift Adjust brightness / contrast	`↑ Shift` + `B`
Shortcuts with Shift Brightness / contrast / midtones	`↑ Shift` + `M`
Shortcuts with Ctrl + Shift Reset materials palette	`Ctrl` + `↑ Shift` + `F6`
Shortcuts with Ctrl + Shift Decrease color depth to 2	`Ctrl` + `↑ Shift` + `1`
Shortcuts with Ctrl + Shift Decrease color depth to 16	`Ctrl` + `↑ Shift` + `2`
Shortcuts with Ctrl + Shift Decrease color depth to 256	`Ctrl` + `↑ Shift` + `3`
Shortcuts with Ctrl + Shift Decrease color depth to 32K	`Ctrl` + `↑ Shift` + `4`
Shortcuts with Ctrl + Shift Decrease color depth to 64K	`Ctrl` + `↑ Shift` + `5`
Shortcuts with Ctrl + Shift Decrease color depth to X colors	`Ctrl` + `↑ Shift` + `6`
Shortcuts with Ctrl + Shift Decrease color depth to RGB 8bits	`Ctrl` + `↑ Shift` + `7`
Shortcuts with Ctrl + Shift Increase color depth to 16	`Ctrl` + `↑ Shift` + `8`
Shortcuts with Ctrl + Shift Increase color depth to 256	`Ctrl` + `↑ Shift` + `9`
Shortcuts with Ctrl + Shift Decrease color depth to RGB 8bits	`Ctrl` + `↑ Shift` + `R`
Shortcuts with Ctrl + Shift Show hidden toolbars	`Ctrl` + `↑ Shift` + `T`
Shortcuts with Ctrl + Shift Invert selections	`Ctrl` + `↑ Shift` + `I`
Shortcuts with Ctrl + Shift Promote selection to layer	`Ctrl` + `↑ Shift` + `P`
Shortcuts with Ctrl + Shift Full screen preview	`Ctrl` + `↑ Shift` + `A`
Shortcuts with Ctrl + Shift Selection from mask	`Ctrl` + `↑ Shift` + `S`
Shortcuts with Ctrl + Shift Snap to grid	`Ctrl` + `↑ Shift` + `G`
Shortcuts with Ctrl + Shift Brightness / contrast histogram	`Ctrl` + `↑ Shift` + `H`
Shortcuts with Ctrl + Shift Paste as new image	`Ctrl` + `↑ Shift` + `V`
Shortcuts with Ctrl + Shift Selection from vector object	`Ctrl` + `↑ Shift` + `B`
Shortcuts with Ctrl + Shift Selection hide marquee	`Ctrl` + `↑ Shift` + `M`
Shortcuts with Ctrl + Alt Swap materials	`Ctrl` + `Alt` + `F6`
Shortcuts with Ctrl + Alt Rulers	`Ctrl` + `Alt` + `R`
Shortcuts with Ctrl + Alt Grid	`Ctrl` + `Alt` + `G`
Shortcuts with Ctrl + Alt Redo last command	`Ctrl` + `Alt` + `Z`
Shortcuts with Ctrl + Alt Clone overlay	`Ctrl` + `Alt` + `C`
Shortcuts with Ctrl + Alt Layer overlay	`Ctrl` + `Alt` + `V`
Shortcuts with Ctrl + Alt Zoom to 100%	`Ctrl` + `Alt` + `N`
Shortcuts with Ctrl + Alt Magnifier	`Ctrl` + `Alt` + `M`
Shortcuts with Shift + Alt Redo	`↑ Shift` + `Alt` + `⬅ Backspace`
Shortcuts with Shift + Alt workspace	`↑ Shift` + `Alt` + `Save`
Shortcuts with Shift + Alt Delete workspace	`↑ Shift` + `Alt` + `D`
Shortcuts with Shift + Alt Snap to guides	`↑ Shift` + `Alt` + `G`
Shortcuts with Shift + Alt Load workspace	`↑ Shift` + `Alt` + `L`