Fill with background color

`⬅ Backspace`

All hotkeys for Krita 3.0

General Select all	`Ctrl` + `A`
General Undo	`Ctrl` + `Z`
General Redo	`↑ Shift` + `Ctrl` + `Z`
General Open	`Ctrl` + `O`
General Deselect	`↑ Shift` + `Ctrl` + `D`
General Save incremental backup	`F4`
General Export	`F5`
General Print	`Ctrl` + `P`
General Cut	`Ctrl` + `X`
General Cut	`↑ Shift` + `Del`
General Save as	`↑ Shift` + `Ctrl` + `S`
General Quit	`Ctrl` + `Q`
General Save incremental	`Alt` + `Ctrl` + `S`
General Close	`Ctrl` + `W`
General Copy	`Alt` + `Ctrl` + `J`
General Copy	`Ctrl` + `C`
General Help	`F1`
General Copy merged	`↑ Shift` + `Ctrl` + `C`
General Save	`Ctrl` + `S`
General Paste	`Ctrl` + `V`
General New	`Ctrl` + `N`
Painting Eraser mode	`E`
Painting New paint layer	`Insert`
Painting Clear	`Del`
Painting Fill with background color	`⬅ Backspace`
Painting Pick layer	`R`
Painting Activate next layer	`Page Up`
Painting Activate previous layer	`Page Down`
Painting Gradient tool	`G`
Painting Move tool	`T`
Painting Multibrush	`Q`
Painting Color pick	`P`
Painting Merge down	`Ctrl` + `E`
Painting Rectangle selection	`Ctrl` + `R`
Painting Transform tool	`Ctrl` + `T`
Painting HSV/HSL adjust	`Ctrl` + `U`
Painting Invert	`Ctrl` + `I`
Painting Duplicate layer	`Ctrl` + `J`
Painting Levels	`Ctrl` + `L`
Painting Display selection	`Ctrl` + `H`
Painting Wrap around mode	`W`
Set/Reset Switch to previous preset	`/`
Set/Reset Reset picker - BW	`D`
Set/Reset Palette	`F`
Set/Reset Elliptical selection	`J`
Set/Reset Decrease brush size	`[`
Set/Reset Increase brush size	`]`
Set/Reset Previous favorite preset	`,`
Set/Reset Next favorite preset	`.`
Misc What's this	`↑ Shift` + `F1`
Misc Color selector	`↑ Shift` + `I`
Misc Set mirror axis	`↑ Shift` + `R`
Misc Hide tip toolbar	`↑ Shift` + `H`
Misc Show dockers	`↑ Shift` + `B`
Misc Minimal shade selector	`↑ Shift` + `N`
Misc Mypaint shade selector	`↑ Shift` + `M`
Misc Undo polygon selection points	`↑ Shift` + `Z`
Misc Flatten image	`↑ Shift` + `Ctrl` + `E`
Misc Total refresh	`↑ Shift` + `Ctrl` + `R`
Misc Full screen mode	`↑ Shift` + `Ctrl` + `F`
Misc Desaturate	`↑ Shift` + `Ctrl` + `U`
Misc Invert selection	`↑ Shift` + `Ctrl` + `I`
Misc Cut selection to layer	`↑ Shift` + `Ctrl` + `J`
Misc Deselect	`↑ Shift` + `Ctrl` + `A`
Zoom Zoom out	`Ctrl` + `-`
Zoom Zoom in	`Ctrl` + `+`
Zoom Zoom in	`Ctrl` + `=`
Zoom Zoom to fit width	`3`
Zoom Zoom to fit	`2`
Zoom Zoom 1:1	`1`
Zoom Zoom 1:1	`0`
Rotate Rotate right	`Ctrl` + `]`
Rotate Reset canvas view	`Ctrl` + `'`
Rotate Rotate left	`Ctrl` + `[`
Rotate Rotate reset	`5`
Rotate Rotate right	`6`
Rotate Rotate left	`4`
Canvas Canvas only mode	`⭾ Tab`
Canvas Toggle full screen	`F11`
Pan Pan left	`←`
Pan Pan right	`→`
Pan Pan up	`↑`
Pan Pan down	`↓`
Color Decrease opacity	`I`
Color Fill with foreground color	`↑ Shift` + `⬅ Backspace`
Color Darken color	`K`
Color Brush tool	`B`
Color Show common color	`C`
Color Lighten color	`L`
Color Increase opacity	`O`
Color Color balance	`Ctrl` + `B`
Color Swap foreground and background colors	`X`
Color Show color history	`H`