1-5	Set zoom level
Ctrl+Wheel	Zoom in/out
Arrows	Pan canvas when zoomed
F	Toggle flash animation
G	Cycle grid size (None/8/16/24px)
Grid color	Dropdown to change grid line color
~	Toggle preview panel
Space	Play/Pause (SCA animation)
Left/Right	Prev/Next frame (SCA)

Drag	Pan canvas (when zoomed)
Drop file	Drop anywhere to open file

P	Pixel tool
L	Line tool
R	Rectangle tool
O	Circle/ellipse tool
G	Airbrush tool
D	Dithered gradient tool
I	Flood fill tool
C	Fill cell tool
A	Recolor (attribute only)
E	Eraser tool
T	Text tool
K	Color picker tool
J	Cell invert (swap ink↔paper + invert bitmap)
W	Dither brush (re-dither cells)
S	Select tool

Left click	Draw with ink
Right click	Draw with paper (erase)
Alt+click	Pick ink+paper from cell (eyedropper)
B	Toggle bright
F	Toggle flash attribute
X	Swap ink/paper colors
[ / ]	Decrease/Increase brush
` (backtick)	Toggle brush preview mode

Ctrl+C	Copy selection
Ctrl+X	Cut selection (copy + erase)
Ctrl+V	Paste
R / H / V	Rotate/Mirror clipboard (while pasting)
N	Invert selection (swap ink ↔ paper)
Shift+W	Re-dither selection
Ctrl+Z	Undo
Ctrl+Y	Redo
Ctrl+S	Save
F11	Toggle fullscreen editor
Tab	Toggle floating palette (in fullscreen)
Escape	Cancel selection/paste, exit fullscreen

Ctrl	Constrain to square/circle (1:1 ratio)
Alt	Draw from center instead of corner
Ctrl+Alt	Both: square/circle from center

Alt+1	Edit Screen 1 (frame 1 only)
Alt+2	Edit Screen 2 (frame 2 only)
Alt+3	Edit Gigascreen (combined mode)

Click slot	Select (empty starts capture)
Shift+click	Capture from screen
Ctrl+click	Clear slot

↻↔↕ buttons: transform clipboard while pasting, otherwise custom brush.

Set	Draw ink or paper based on button
Invert	Toggle pixels (ink↔paper)
Replace	Overwrite all pixels under brush
Recolor	Change attributes only, keep bitmap
Retouch	Change bitmap only, keep attributes
Masked	Use custom brush as tiled mask pattern (fixed origin)
Masked+	Use custom brush as tiled mask (stroke-relative origin)

Masked modes: select a custom brush for pattern, then choose any brush shape/size for drawing.

.768 fonts	ZX Spectrum 8×8 bitmap fonts
TTF fonts	TrueType/OpenType (any size)
Click canvas	Place text at position

Version	V1-V20 (20 to 970 letters max)
Module size	1, 2, 3, 4, or 8 pixels
Auto uppercase	For maximum capacity
Click canvas	Place QR code at position

Radius	Spray area size (4-32 pixels)
Density	Particles per spray (0.03-1.0)
Falloff	Uniform to Very Hard (center bias)
Hold button	Continuous spray while held
Masked mode	Spray through stencil pattern (ink only)

Types	Linear, Radial, Diamond, Conical, Square, Spiral
Dither	Bayer (ordered) or Noise (blue noise)
Reverse	Swap ink/paper direction
Drag	From start to end point

Characters	ROM font (0x20-0x7F) + block graphics (0x80-0x8F)
Palette	Click tile to select character for drawing
Right click	Pick character + attributes from screen
OVER layers	XOR compositing — loaded from stream control codes
Export .scr	Render characters to bitmap (Transform tab)

Tools: Pixel, Line, Rect, Circle, Flood Fill, Eraser, Text

Modes: Set (place char), Invert (swap ink/paper), Recolor (attrs only)

Eraser clears cell and removes it from current layer

Load/Clear	Load or remove reference image
Show	Toggle visibility
Opacity	Adjust transparency (5-80%)
X/Y	Position offset (can be negative)
W/H	Custom size (empty = fit to format)

Reference image is saved in workspace files.

4 CLUTs	16 colors each (8 ink + 8 paper)
Grid view	All 64 colors in 8×8 grid
Classic view	Single CLUT, ink row + paper row
Save palette	Export 64-byte .pal file (GRB332)
Load palette	Import .pal file to current picture
I/P markers	Show selected ink/paper colors
Ctrl+click	Edit color (R/G/B sliders, GRB332)
Shift+click	Copy/swap: mark source, then click=copy or Shift+click=swap
Alt+click	Pick ink+paper from cell (eyedropper)

Ink and paper must be from same CLUT. Convert SCR↔ULA+ via Transform tab.

Ink mask	Configurable split: $01–$FF (2/128 to 256/1 ink/paper)
Palette	8-bit (1-byte) or 9-bit (2-byte RGB333), auto-detected
Flash	Disabled (bits used for palette indexing)

Auto-detected from .scr files (6945–7426 bytes). Round-trip save preserves mask and palette.

Shift+click	Start capture, then click border
Click slot	Select/deselect barcode
Ctrl+click	Clear slot
Stamp	Click/drag on border with selected barcode

Width auto-detected (8/16/24px). Available for BSC/BMC4 formats.

Grid	Snap to grid size (from View tab)
Subgrid	Snap to subgrid size (from View tab)
Zero	Snap to clipboard-sized grid from origin
Brush	Snap to clipboard-sized grid from first paste
Off	Pixel-precise placement

Grid/Subgrid use paper grid sizes from View tab settings.

Keyboard shortcuts work with any keyboard layout (Russian, German, etc.) — based on physical key position.

.scr	6912b	Standard screen
.scr	6976b	ULA+ (64-color palette)
.scr	6945–7426b	ULANext (Next extended palette)
.scr	6144b	Monochrome full
.scr	4096b	Monochrome 2/3
.scr	2048b	Monochrome 1/3
.53c/.atr	768b	Attributes only
.bsc	11136b	Border screen
.bsp	var	Border screen + header
.ifl	9216b	8×2 multicolor
.mlt/.mc	12288b	8×1 multicolor
.bmc4	11904b	8×4 + border
.3	18432b	Tricolor RGB
.img	13824b	Gigascreen (2×SCR)
.ga	7680b	Gigaattr (shared bitmap + 2×attrs)
.sca	var	Animation (full/attr-only)
.specscii	var	Text mode (32×24 chars + OVER layers)
.ch$ / .chr$ / .ch-	var	chr$ character array
.zxp	var	ZX-Paintbrush (variable-size)
.btile / .wtile	var	Nirvana tiles (editable)
.nxi	49664b	Next Layer 2 256×192 + palette
.nxi	82432b	Next Layer 2 320×256 + palette
.nxi	81952b	Next Layer 2 640×256 + palette
.sl2	49152b	Next Layer 2 256×192 (default palette)
.sl2	81920b	Next Layer 2 320×256 or 640×256
.slr	12288b	Next LoRes 128×96 (256-color)
.rad	6144b	Next LoRes Radastan 128×96 (16-color 4bpp)

.zip

var

Archive (auto-extract)

.png, .gif, .jpg, .webp, .bmp

SPECSCII charset: Full (ROM + blocks), ASCII (ROM only), UDG (blocks only)