Make key names in KEYS section more consistent with X11 keysyms (#304)

.Ar action

names, see

.Sx KEYS .

Note that not all of the key names used there correspond to X11 keysyms.

Most notably, page up

.Pq Prior / Page_Up ,

page down

.Pq Next / Page_Down

and the keypad keys

.Pq KP_*

do not.

.

.

.Sh KEYS

bottom of the screen will turn yellow and can be edited.  Hit return to confirm

and save the caption, or escape to cancel editing.  Note that you can insert

an actual newline into the caption using

.Aq CTRL+return .

.Aq Ctrl+return .

.

.It d Bq toggle_filenames

.

.Aq escape

to close the menu.

.

.It n , Ao Space Ac , Ao Right Ac Bq next_img

.It n , Ao space Ac , Ao Right Ac Bq next_img

.

Show next image. Selects the next image in thumbnail mode.

.

Run the command defined by

.Cm --action

.

.It Ao home Ac Bq jump_first

.It Ao Home Ac Bq jump_first

.

Show first image

.

.It Ao end Ac Bq jump_last

.It Ao End Ac Bq jump_last

.

Show last image

.

.

Decrease reload delay by 1 second

.

.It Ao delete Ac Bq remove

.It Ao Delete Ac Bq remove

.

Remove current file from filelist

.

.It Ao CTRL+delete Ac Bq delete

.It Ao Ctrl+Delete Ac Bq delete

.

Remove current file from filelist and delete it

.

.

Highlight child menu item

.

.It Ao Return Ac , Ao Space Ac Bq menu_select

.It Ao Return Ac , Ao space Ac Bq menu_select

.

Select highlighted menu item

.

.

.Pp

.

CTRL+Button 1 blurs or sharpens the image

Ctrl+Button 1 blurs or sharpens the image

.Pq drag left to blur, right to sharpen ;

CTRL+Button 2 rotates the image around the center point.

Ctrl+Button 2 rotates the image around the center point.

.

.Pp

.