Preferences

Open Preferences via Edit → Preferences (or Ctrl K / ⌘ K). Choose a category from the list on the left. Click OK to apply and save, or Cancel to discard all changes made in this session.

General

Setting	Description
Screen Gamut	Color gamut used by the WebGL framebuffer. auto picks the best option for your display; sRGB is the standard; Display-P3 targets wide-gamut monitors.
Locate Layer on Select	Automatically scrolls the Layers panel to reveal the active layer whenever a layer is selected.
Marching Ants
Line Width	Selection outline thickness in screen pixels (1–3 px).
Stipple Length	Dash length preset for the animated selection outline: Short, Medium, or Long.
Speed	Animation speed of the selection outline: Stopped, Slow, Medium, or Fast.

Interface

Setting	Description
Color Theme	Overall UI lightness (8 = very dark, 96 = very light). Drag the slider to find a comfortable brightness.
Shadow Radius	Blur radius of the drop shadow behind floating panels and dialogs.
Shadow Opacity	Opacity of the drop shadow (0–100 %).
Hilight Color	Accent color used for selected items, focus rings, and active controls.
Area Background Color	Background color of empty canvas areas outside the document.
Tooltips
Show Tooltips	Toggle tooltip popups on or off.
Delay	Milliseconds of hover time before a tooltip appears (0 = instant).
Background Color	Background color of tooltip popups.
Display
Browser Zoom	Read-only reminder: use Ctrl + / Ctrl − in the browser to scale the entire UI.
Screen Scaling	Renders the UI at a reduced logical resolution then scales it up. Useful for a retro pixel-art look or to enlarge the UI on high-DPI screens without browser zoom.
Scaling mode	How the scaled framebuffer is upsampled: Pixelated preserves hard pixel edges; Auto lets the browser smooth it.
Font
Name	UI font family used for all labels, menus, and tooltips.
Size	UI font size in points (6–36).
Hinting	Adjusts glyph outlines so text looks sharper at small sizes. Disable if text looks distorted on your display.
Subpixel	Uses RGB subpixels to triple effective horizontal text resolution. Disable if text shows color fringing.

See Fonts for details on loading fonts, supported formats, and text rendering.

Transparency Grid

Setting	Description
Grid Size	Size of the checkerboard squares: Tiny, Small, Medium, or Large.
Color 0	The lighter checkerboard color.
Color 1	The darker checkerboard color.

Guides & Grid

Setting	Description
Pixel Grid
Pixel Grid Zoom Level	The grid is only visible at or above this zoom level (400 %–1600 %).
Pixel Grid Color	Color (including opacity) of the pixel grid lines.
Pixel Grid Line Width	Grid line thickness in framebuffer pixels (1–3 px).
Pixel Grid Anti-alias	Slightly smooth grid lines using derivatives. Disable for a harder, crisper grid.
Guides Color	Color of ruler guide lines dragged from the ruler.
Grid Color	Color of the document grid overlay.
Path
Path Color	Default stroke color for path outlines.
Path Outline Width	Path outline thickness (1–4 px).
Path Outline Anti-alias	Slightly smooth path outline edges.
Path Handle Size	Size of bezier control-point handles: Small, Medium, or Large.

Tools

Setting	Description
Ignore Empty Brush Stroke	Discards brush strokes that produce no visible change, keeping history clean.
Zoom with Scroll Wheel	When enabled the scroll wheel zooms the canvas. Disable to use the scroll wheel for scrolling instead.

Cursors

Setting	Description
Hide Outline While Painting	Hides the brush-size preview circle while a stroke is in progress to reduce visual clutter.
Paintbrush Crosshair	Shows a crosshair at the center of the brush cursor in addition to (or instead of) the size ring.

Performance

Setting	Description
History States	Maximum number of undo steps (1–1000). Higher values use more memory.

File Handling

Setting	Description
File Save Extension	Whether file extensions are written in lower case (e.g. .png) or upper case (e.g. .PNG) when saving.
ZIP Deflate level	Compression effort for ZIP-based formats (1 = fastest / largest file, 9 = slowest / smallest file).
Recent File List Contains	How many files to remember in the Recent Files list (0–20).

Quick Export

Setting	Description
Format	Default file format for Quick Export: BMP, GIF, PNG, or JPEG.
JPEG Quality	JPEG compression quality (1–100 %). Only relevant when Format is JPEG.
Download	Trigger a browser download for each exported file.
Destination Folder	Save exported files directly to a local folder (requires file-system access permission).

ICC Color Management

ICC and OpenColorIO are alternative color-management systems — a document uses one or the other, never both — so each has its own page. OpenColorIO settings are below.

Setting	Description
Working Profiles
RGB	Default ICC profile used for RGB documents (e.g. sRGB IEC61966-2.1).
CMYK	Default ICC profile used for CMYK documents.
Gray	Default ICC profile used for Grayscale documents.
Conversion Options
Rendering Intent	How colors are converted between profiles: Perceptual, Relative Colorimetric, Saturation, or Absolute Colorimetric.
Use Black Point Compensation	Map the source profile's darkest black to the destination's instead of clipping, so shadow detail survives a conversion to a smaller dynamic range.
Use Dither (8-bit/channel images)	Add a small amount of noise when converting 8-bit images, which trades a little grain for the loss of banding in gradients.
Policies
(Profile mismatch) Ask When Opening	Show a dialog when the embedded profile of a file doesn't match the working profile.
(Profile mismatch) Ask When Pasting	Show a dialog when pasted content carries a different profile than the document.
(Profile missing) Ask When Opening	Show a dialog when a file has no embedded ICC profile.

OpenColorIO

Setting	Description
Configuration	The config used as the default for new documents. Either an ocio:// builtin name or the location of a config file.

The ACES configs that ship with the app are builtins: a document records one by the name OpenColorIO itself uses, such as ocio://studio-config-v2.2.0_aces-v1.3_ocio-v2.4, and they cannot be edited or deleted. The aliases ocio://default, ocio://cg-config-latest and ocio://studio-config-latest also resolve; a document always stores the exact name an alias resolved to, so it keeps rendering the same way when a newer config ships.

WebGL Context

Changes to WebGL Context settings take effect after reloading the page.

Setting	Description
antialias UI	Enables MSAA on the WebGL context. May smooth UI edges slightly at the cost of a little performance.
desynchronized	Hints to the browser to decouple rendering from the page compositor for lower latency. May cause flickering on some GPUs.
powerPreference	Hints to the browser which GPU to use: default (browser decides), low-power (integrated GPU), or high-performance (discrete GPU).

Pathtracer

Setting	Description
Max Samples	Number of path-tracer passes before the render stops (8–1024). Higher values give cleaner images but take longer.
Max Bounces	Maximum light bounces per ray (1–16). Higher values improve indirect lighting at the cost of speed.

Assistant

Setting	Description
Search Engine	Default web search provider used by the AI assistant (Brave, Bing, or Google). You can ask the assistant to switch mid-chat.
Action History	Number of recent app actions sent to the assistant as context (0–50). Set to 0 to disable.
Tool Loop Limit	Maximum tool-call rounds before the assistant pauses and shows a Continue button (1–50). Higher values allow longer uninterrupted runs.

Debug

Setting	Description
Log texture allocations	Logs every GPU texture allocation and deallocation to the browser console. Useful for tracking memory usage and detecting leaks.
Arrange flashing	Flashes a highlight on any UI element that is re-laid-out. Useful for identifying unnecessary layout passes.
gl.getError (very slow)	Calls gl.getError() after every WebGL draw call to catch GL errors at their source. Severely impacts performance — only enable when diagnosing rendering bugs.
Disable WEBGL_blend_func_extended	Disables the extension used for single-pass subpixel text rendering. Enable if subpixel text looks wrong on your GPU.