diff --git a/bos.inc b/bos.inc
index a5993e3..105995f 100644
--- a/bos.inc
+++ b/bos.inc
@@ -569,7 +569,7 @@ namespace bos
 ?return_code_flags      := ti.appData+30 ; flag byte that determines how to interpret the return value of the last run program. Is to be set within the program for non-default return interpretation.
 ?flashStatusByte        := ti.appData+31 ; 1 byte
 ?filesystem_driver      := ti.appData+32 ; 1 byte
-?copy_buffer            := ti.appData+33 ; 3 bytes, points to first copy buffer entry, or -1 if nothing is stored.
+?copy_buffer            := ti.appData+33 ; 3 bytes, points to first copy buffer entry, or 0 if nothing is stored.
 ?threading_enabled      := ti.appData+36 ; 1 byte, determines if software threading is enabled and whether it should be used in OS routines
 ?current_thread         := ti.appData+37 ; 1 byte, currently running thread ID
 ?gfx_string_temp        := ti.appData+38 ; 16 bytes, temp location for integer printing
diff --git a/convert_background.py b/convert_background.py
index 05e83d8..bb34d2f 100644
--- a/convert_background.py
+++ b/convert_background.py
@@ -14,7 +14,7 @@ def convert(fnamein, fnameout, mode=None):
 	with Image.open(fnamein) as img:
 		img = img.resize((320, (img.height*320)//img.width))
 		if img.height > 220:
-			img = img.crop((0, 110-img.height//2, 320, 110+img.height//2))
+			img = img.crop((0, 0, 320, 220))
 		# img = img.convert("RGB").quantize(palette=Image.open(os.path.join(os.path.dirname(__file__), "xlibc_palette.png")).convert("P"))
 		img = img.convert("RGB").convert("P", palette=xlibc_palette)
 		img.save(os.path.join(tmp, "image.png"))
diff --git a/src/boot.asm b/src/boot.asm
index c59d8a0..d677cbd 100644
--- a/src/boot.asm
+++ b/src/boot.asm
@@ -443,6 +443,8 @@ os_return_soft:
 	; set ti.bIntOSTmr,(hl)
 	call gfx_Set8bpp
 	xor a,a
+	sbc hl,hl
+	ld (copy_buffer),hl
 	call gfx_SetDraw
 
 	call os_check_recovery_key
diff --git a/src/data/adrive/src/fs/bin/explorer/config.asm b/src/data/adrive/src/fs/bin/explorer/config.asm
index f9c84de..525e23a 100644
--- a/src/data/adrive/src/fs/bin/explorer/config.asm
+++ b/src/data/adrive/src/fs/bin/explorer/config.asm
@@ -79,6 +79,10 @@ explorer_configure_theme:
 	jq nz,.display_theme_loop_skip_4b_loop
 	jq .display_themes_loop
 .done_displaying_themes:
+	ld hl,themes_option_strings
+	push hl
+	call draw_taskbar
+	pop bc
 	; ld hl,(.smc_y)
 	; ld de,display_margin_left+11
 	; ld bc,str_CustomTheme
@@ -118,6 +122,10 @@ explorer_configure_theme:
 	call bos.sys_WaitKeyCycle
 	cp a,ti.skClear
 	ret z
+	cp a,ti.skYequ
+	jq z,.custom
+	cp a,ti.skWindow
+	jq z,.background_image
 	cp a,ti.skEnter
 	jq z,.select
 	cp a,ti.skUp
@@ -178,123 +186,129 @@ explorer_configure_theme:
 	pop bc,bc,bc,bc
 	ret
 
-; .colors:
-	; db 4 dup 0
-; .exit:
-	; ld c,1
-	; push bc
-	; call gfx_SetDraw
-	; pop bc,bc ; pop caller of explorer_configure_theme.main
-	; ret
-; .custom:
-	; ld a,(explorer_background_color)
-	; ld (.colors+0),a
-	; ld a,(explorer_statusbar_color)
-	; ld (.colors+1),a
-	; ld a,(explorer_foreground_color)
-	; ld (.colors+2),a
-	; ld a,(explorer_foreground2_color)
-	; ld (.colors+3),a
-	; ld hl,.colors
-; .customloop:
-	; push hl
-	; ld c,1
-	; push bc
-	; call gfx_SetDraw
-	; pop bc
-	; ld bc,10
-	; ld (.drawbox_x_smc),bc
-	; ld a,(.colors+0)
-	; ld (explorer_background_color),a
-	; ld a,(.colors+1)
-	; ld (explorer_statusbar_color),a
-	; ld a,(.colors+2)
-	; ld (explorer_foreground_color),a
-	; ld a,(.colors+3)
-	; ld (explorer_foreground2_color),a
+.background_image:
+	ld hl,$FF0000
+	ld de,str_ImageFilePrompt
+	call explorer_input_file_name
+	jp explorer_load_config.setbackgroundimage_entryhl
 
-	; call draw_background
-	; ld a,(explorer_background_color)
-	; call .drawbox
-	; ld a,(explorer_statusbar_color)
-	; call .drawbox
-	; ld a,(explorer_foreground_color)
-	; call .drawbox
-	; ld a,(explorer_foreground2_color)
-	; call .drawbox
-	; ld c,0
-	; push bc
-	; call gfx_SetColor
-	; pop bc
-	; ld bc,16
-	; push bc
-	; ld c,60
-	; push bc
-	; ld bc,0
-; .custom_selected_x:=$-3
-	; push bc
-	; call gfx_HorizLine
-	; pop bc,bc,bc
-	; call gfx_BlitBuffer
-	; ld a,20
-	; call ti.DelayTenTimesAms
-	; call bos.sys_WaitKey
-	; pop hl
-	; cp a,ti.skRight
-	; jq nz,.dontprevcolor
-	; dec hl
-; .dontprevcolor:
-	; cp a,ti.skLeft
-	; jq nz,.dontnextcolor
-	; inc hl
-; .dontnextcolor:
-	; ld c,a
-	; ld a,l
-	; cp a, (.colors-1) and $FF
-	; jq nz,.notunder
-	; ld l, (.colors+3) and $FF
-; .notunder:
-	; cp a, (.colors+4) and $FF
-	; jq nz,.notover
-	; ld l, .colors and $FF
-; .notover:
-	; ld a,c
-	; cp a,ti.skUp
-	; jq nz,.dontdecrementcolor
-	; dec (hl)
-; .dontdecrementcolor:
-	; cp a,ti.skDown
-	; jq nz,.dontincrementcolor
-	; inc (hl)
-; .dontincrementcolor:
-	; cp a,ti.skClear
-	; jq z,.exit
-	; cp a,ti.skEnter
-	; jq nz,.customloop
-	; call explorer_write_config
-	; pop hl
-	; ret c ; return to caller of explorer_configure_theme if malloc failed
-	; jp (hl) ; otherwise return to caller of explorer_configure_theme.main
+.colors:
+	db 4 dup 0
+.exit:
+	ld c,1
+	push bc
+	call gfx_SetDraw
+	pop bc,bc ; pop caller of explorer_configure_theme.main
+	ret
+.custom:
+	ld a,(explorer_background_color)
+	ld (.colors+0),a
+	ld a,(explorer_statusbar_color)
+	ld (.colors+1),a
+	ld a,(explorer_foreground_color)
+	ld (.colors+2),a
+	ld a,(explorer_foreground2_color)
+	ld (.colors+3),a
+	ld hl,.colors
+.customloop:
+	push hl
+	ld c,1
+	push bc
+	call gfx_SetDraw
+	pop bc
+	ld bc,10
+	ld (.drawbox_x_smc),bc
+	ld a,(.colors+0)
+	ld (explorer_background_color),a
+	ld a,(.colors+1)
+	ld (explorer_statusbar_color),a
+	ld a,(.colors+2)
+	ld (explorer_foreground_color),a
+	ld a,(.colors+3)
+	ld (explorer_foreground2_color),a
 
-; .drawbox:
-	; ld c,a
-	; push bc
-	; call gfx_SetColor
-	; pop bc
-	; ld bc,16
-	; push bc,bc
-	; ld bc,40
-	; push bc
-	; ld bc,0
-; .drawbox_x_smc:=$-3
-	; push bc
-	; call gfx_FillRectangle
-	; pop bc,bc,bc,de
-	; ld hl,(.drawbox_x_smc)
-	; add hl,bc
-	; inc hl
-	; ld (.drawbox_x_smc),hl
-	; ret
+	call draw_background
+	ld a,(explorer_background_color)
+	call .drawbox
+	ld a,(explorer_statusbar_color)
+	call .drawbox
+	ld a,(explorer_foreground_color)
+	call .drawbox
+	ld a,(explorer_foreground2_color)
+	call .drawbox
+	ld c,0
+	push bc
+	call gfx_SetColor
+	pop bc
+	ld bc,16
+	push bc
+	ld c,60
+	push bc
+	ld bc,0
+.custom_selected_x:=$-3
+	push bc
+	call gfx_HorizLine
+	pop bc,bc,bc
+	call gfx_BlitBuffer
+	ld a,20
+	call ti.DelayTenTimesAms
+	call bos.sys_WaitKey
+	pop hl
+	cp a,ti.skRight
+	jq nz,.dontprevcolor
+	dec hl
+.dontprevcolor:
+	cp a,ti.skLeft
+	jq nz,.dontnextcolor
+	inc hl
+.dontnextcolor:
+	ld c,a
+	ld a,l
+	cp a, (.colors-1) and $FF
+	jq nz,.notunder
+	ld l, (.colors+3) and $FF
+.notunder:
+	cp a, (.colors+4) and $FF
+	jq nz,.notover
+	ld l, .colors and $FF
+.notover:
+	ld a,c
+	cp a,ti.skUp
+	jq nz,.dontdecrementcolor
+	dec (hl)
+.dontdecrementcolor:
+	cp a,ti.skDown
+	jq nz,.dontincrementcolor
+	inc (hl)
+.dontincrementcolor:
+	cp a,ti.skClear
+	jq z,.exit
+	cp a,ti.skEnter
+	jq nz,.customloop
+	call explorer_write_config
+	pop hl
+	ret c ; return to caller of explorer_configure_theme if malloc failed
+	jp (hl) ; otherwise return to caller of explorer_configure_theme.main
+
+.drawbox:
+	ld c,a
+	push bc
+	call gfx_SetColor
+	pop bc
+	ld bc,16
+	push bc,bc
+	ld bc,40
+	push bc
+	ld bc,0
+.drawbox_x_smc:=$-3
+	push bc
+	call gfx_FillRectangle
+	pop bc,bc,bc,de
+	ld hl,(.drawbox_x_smc)
+	add hl,bc
+	inc hl
+	ld (.drawbox_x_smc),hl
+	ret
 
 
 explorer_write_config:
diff --git a/src/data/adrive/src/fs/bin/explorer/data.asm b/src/data/adrive/src/fs/bin/explorer/data.asm
index c7e5746..5a29a66 100644
--- a/src/data/adrive/src/fs/bin/explorer/data.asm
+++ b/src/data/adrive/src/fs/bin/explorer/data.asm
@@ -63,7 +63,7 @@ new_file_option_strings:
 .l1:
 	db "file",0
 .l2:
-	db "dir",0
+	db "dir"
 .l3:
 	; db "link",0
 .l4:
@@ -71,6 +71,24 @@ new_file_option_strings:
 .l5:
 	db 0
 
+themes_option_strings:
+	dl .strings
+	db 4 dup $C9
+	db 4 dup $C9
+	db 4 dup $C9
+	db 4 dup $C9
+	db 4 dup $C9
+.strings:
+	dl .l1, .l2, .l3, .l4, .l5
+.l1:
+	db "Custom",0
+.l2:
+	db "Image"
+.l3:
+.l4:
+.l5:
+	db 0
+
 explorer_themes_default:
 	db "BOS Blue",0,$08,$11,$FF,$07
 	db "BOS Green",0,$04,$02,$AF,$C7
@@ -95,12 +113,14 @@ str_NewFileNamePrompt:
 	db "File name? ",0
 str_NewDirNamePrompt:
 	db "Directory name? ",0
+str_ImageFilePrompt:
+	db "Image file? ",0
 ; str_NewLinkPrompt:
 	; db "Link file name? ",0
 ; str_NewImagePrompt:
 	; db "Image file name? ",0
 str_CustomTheme:
-	db "Custom Theme",0
+	db "Custom",0
 ; str_UsbRecvExecutable:
 	; db "/bin/usbrecv",0
 ; str_OffExecutable:
diff --git a/src/data/adrive/src/fs/bin/explorer/display.asm b/src/data/adrive/src/fs/bin/explorer/display.asm
index 019e86a..3a32bc7 100644
--- a/src/data/adrive/src/fs/bin/explorer/display.asm
+++ b/src/data/adrive/src/fs/bin/explorer/display.asm
@@ -205,7 +205,7 @@ explorer_display_diritems:
 	pop hl
 	jq .dont_draw_extension
 .main_draw_regular_file_name:
-	ld b,8
+	ld b,10
 .main_draw_file_name_loop:
 	ld a,(hl)
 	or a,a
diff --git a/src/data/adrive/src/fs/bin/explorer/loadconfig.asm b/src/data/adrive/src/fs/bin/explorer/loadconfig.asm
index 8734087..e2ef49c 100644
--- a/src/data/adrive/src/fs/bin/explorer/loadconfig.asm
+++ b/src/data/adrive/src/fs/bin/explorer/loadconfig.asm
@@ -9,7 +9,9 @@ explorer_load_config:
 	jq z,.nextline
 .check:
 	push hl,bc
-	ld bc,.next ; push this so we can conditionally "return" to .next instead of using many conditional jumps
+; push this so we can conditionally "return" to .next instead of using many conditional jumps.
+; also so that we can call some of the subroutines (namely .setbackgroundimage) externally.
+	ld bc,.next
 	push bc
 	ld bc,(hl)
 	ld (ix-3),bc
@@ -212,6 +214,7 @@ str_fg2:=$-3
 
 .setbackgroundimage:
 	ld hl,(ix-6)
+.setbackgroundimage_entryhl:
 	push hl
 	call bos.fs_GetFilePtr
 	pop de
diff --git a/src/data/adrive/src/fs/bin/include/bos.inc b/src/data/adrive/src/fs/bin/include/bos.inc
index a5993e3..105995f 100644
--- a/src/data/adrive/src/fs/bin/include/bos.inc
+++ b/src/data/adrive/src/fs/bin/include/bos.inc
@@ -569,7 +569,7 @@ namespace bos
 ?return_code_flags      := ti.appData+30 ; flag byte that determines how to interpret the return value of the last run program. Is to be set within the program for non-default return interpretation.
 ?flashStatusByte        := ti.appData+31 ; 1 byte
 ?filesystem_driver      := ti.appData+32 ; 1 byte
-?copy_buffer            := ti.appData+33 ; 3 bytes, points to first copy buffer entry, or -1 if nothing is stored.
+?copy_buffer            := ti.appData+33 ; 3 bytes, points to first copy buffer entry, or 0 if nothing is stored.
 ?threading_enabled      := ti.appData+36 ; 1 byte, determines if software threading is enabled and whether it should be used in OS routines
 ?current_thread         := ti.appData+37 ; 1 byte, currently running thread ID
 ?gfx_string_temp        := ti.appData+38 ; 16 bytes, temp location for integer printing
diff --git a/src/data/adrive/src/fs/bin/include/defines.inc b/src/data/adrive/src/fs/bin/include/defines.inc
index 7661097..af93f8a 100644
--- a/src/data/adrive/src/fs/bin/include/defines.inc
+++ b/src/data/adrive/src/fs/bin/include/defines.inc
@@ -54,7 +54,7 @@ running_program_ptr    := ti.appData+27 ; 3 bytes. Stores pointer to currently r
 return_code_flags      := ti.appData+30 ; flag byte that determines how to interpret the return value of the last run program. Is to be set within the program for non-default return interpretation.
 flashStatusByte        := ti.appData+31 ; 1 byte
 filesystem_driver      := ti.appData+32 ; 1 byte
-copy_buffer            := ti.appData+33 ; 3 bytes, points to first copy buffer entry, or -1 if nothing is stored.
+copy_buffer            := ti.appData+33 ; 3 bytes, points to first copy buffer entry, or 0 if nothing is stored.
 threading_enabled      := ti.appData+36 ; 1 byte, determines if software threading is enabled and whether it should be used in OS routines
 current_thread         := ti.appData+37 ; 1 byte, currently running thread ID
 gfx_string_temp        := ti.appData+38 ; 16 bytes, temp location for integer printing
diff --git a/src/data/adrive/src/fs/lib/include/bos.inc b/src/data/adrive/src/fs/lib/include/bos.inc
index a5993e3..105995f 100644
--- a/src/data/adrive/src/fs/lib/include/bos.inc
+++ b/src/data/adrive/src/fs/lib/include/bos.inc
@@ -569,7 +569,7 @@ namespace bos
 ?return_code_flags      := ti.appData+30 ; flag byte that determines how to interpret the return value of the last run program. Is to be set within the program for non-default return interpretation.
 ?flashStatusByte        := ti.appData+31 ; 1 byte
 ?filesystem_driver      := ti.appData+32 ; 1 byte
-?copy_buffer            := ti.appData+33 ; 3 bytes, points to first copy buffer entry, or -1 if nothing is stored.
+?copy_buffer            := ti.appData+33 ; 3 bytes, points to first copy buffer entry, or 0 if nothing is stored.
 ?threading_enabled      := ti.appData+36 ; 1 byte, determines if software threading is enabled and whether it should be used in OS routines
 ?current_thread         := ti.appData+37 ; 1 byte, currently running thread ID
 ?gfx_string_temp        := ti.appData+38 ; 16 bytes, temp location for integer printing
diff --git a/src/data/adrive/src/fs/lib/include/defines.inc b/src/data/adrive/src/fs/lib/include/defines.inc
index 7661097..af93f8a 100644
--- a/src/data/adrive/src/fs/lib/include/defines.inc
+++ b/src/data/adrive/src/fs/lib/include/defines.inc
@@ -54,7 +54,7 @@ running_program_ptr    := ti.appData+27 ; 3 bytes. Stores pointer to currently r
 return_code_flags      := ti.appData+30 ; flag byte that determines how to interpret the return value of the last run program. Is to be set within the program for non-default return interpretation.
 flashStatusByte        := ti.appData+31 ; 1 byte
 filesystem_driver      := ti.appData+32 ; 1 byte
-copy_buffer            := ti.appData+33 ; 3 bytes, points to first copy buffer entry, or -1 if nothing is stored.
+copy_buffer            := ti.appData+33 ; 3 bytes, points to first copy buffer entry, or 0 if nothing is stored.
 threading_enabled      := ti.appData+36 ; 1 byte, determines if software threading is enabled and whether it should be used in OS routines
 current_thread         := ti.appData+37 ; 1 byte, currently running thread ID
 gfx_string_temp        := ti.appData+38 ; 16 bytes, temp location for integer printing
diff --git a/src/data/buildno.txt b/src/data/buildno.txt
index b6956e0..a6ca4da 100644
--- a/src/data/buildno.txt
+++ b/src/data/buildno.txt
@@ -1 +1 @@
-1.19.1114 alpha
\ No newline at end of file
+1.19.1214 alpha
\ No newline at end of file
diff --git a/src/gui/Input.asm b/src/gui/Input.asm
index bc45c1e..02bf1b1 100644
--- a/src/gui/Input.asm
+++ b/src/gui/Input.asm
@@ -60,6 +60,10 @@ gui_Input:
 	jq z,.exit
 	cp a,54
 	jq z,.nextmap
+	cp a,ti.skGraph
+	jq z,.paste
+	cp a,ti.skTrace
+	jq z,.copy
 	cp a,9
 	jq z,.enter
 	jq c,.keys
@@ -266,6 +270,48 @@ gui_Input:
 	pop hl
 	jq ._printlines
 
+.paste:
+	ld hl,(ix+9)
+	ld bc,(ix-11)
+	or a,a
+	sbc hl,bc
+	jr z,.dontpaste ; no room in buffer
+	push hl
+	ld hl,(ix+6)
+	add hl,bc ; buffer write offset
+	ex hl,de
+	pop bc ; characters remaining in buffer
+	ld hl,(copy_buffer)
+	add hl,bc
+	or a,a
+	sbc hl,bc
+	jr z,.dontpaste ; nothing to paste
+	push bc,hl,de
+	call ti._strncpy
+	pop bc,bc,bc
+.dontpaste:
+	jq .draw
+
+.copy:
+	ld hl,(ix+6)
+	push hl
+	call ti._strlen
+	inc hl
+	push hl
+	call sys_Malloc.entryhl
+	pop bc
+	ex hl,de
+	pop hl
+	jr c,.dontcopy
+	push de
+	ldir
+	ld hl,(copy_buffer)
+	call sys_Free.entryhl
+	pop hl
+	ld (copy_buffer),hl
+.dontcopy:
+	jq .draw
+
 .keymaps:
 	dl .keymap_A,.keymap_a,.keymap_1,.keymap_x
 .keymap_A:
diff --git a/src/include/bos.inc b/src/include/bos.inc
index a5993e3..105995f 100644
--- a/src/include/bos.inc
+++ b/src/include/bos.inc
@@ -569,7 +569,7 @@ namespace bos
 ?return_code_flags      := ti.appData+30 ; flag byte that determines how to interpret the return value of the last run program. Is to be set within the program for non-default return interpretation.
 ?flashStatusByte        := ti.appData+31 ; 1 byte
 ?filesystem_driver      := ti.appData+32 ; 1 byte
-?copy_buffer            := ti.appData+33 ; 3 bytes, points to first copy buffer entry, or -1 if nothing is stored.
+?copy_buffer            := ti.appData+33 ; 3 bytes, points to first copy buffer entry, or 0 if nothing is stored.
 ?threading_enabled      := ti.appData+36 ; 1 byte, determines if software threading is enabled and whether it should be used in OS routines
 ?current_thread         := ti.appData+37 ; 1 byte, currently running thread ID
 ?gfx_string_temp        := ti.appData+38 ; 16 bytes, temp location for integer printing
diff --git a/src/include/defines.inc b/src/include/defines.inc
index 7661097..af93f8a 100644
--- a/src/include/defines.inc
+++ b/src/include/defines.inc
@@ -54,7 +54,7 @@ running_program_ptr    := ti.appData+27 ; 3 bytes. Stores pointer to currently r
 return_code_flags      := ti.appData+30 ; flag byte that determines how to interpret the return value of the last run program. Is to be set within the program for non-default return interpretation.
 flashStatusByte        := ti.appData+31 ; 1 byte
 filesystem_driver      := ti.appData+32 ; 1 byte
-copy_buffer            := ti.appData+33 ; 3 bytes, points to first copy buffer entry, or -1 if nothing is stored.
+copy_buffer            := ti.appData+33 ; 3 bytes, points to first copy buffer entry, or 0 if nothing is stored.
 threading_enabled      := ti.appData+36 ; 1 byte, determines if software threading is enabled and whether it should be used in OS routines
 current_thread         := ti.appData+37 ; 1 byte, currently running thread ID
 gfx_string_temp        := ti.appData+38 ; 16 bytes, temp location for integer printing