Tools & Interactions
A reference guide to all built-in tools, viewport options, and interactive controls in OpenGPEX.
Sidebar Drawers
| Drawer | Description |
|---|---|
| Layers | Z-order management, visibility, opacity, blend modes, masks, merge, fragment marking (multi-select for Union Merge), Merge Back |
| Drawing Tools | Text, Brush, Eraser, Mosaic, Marker tools (CraftDrawer) |
| Adjustments | 5-tab panel: Basic (5 sliders), Curves (RGB + per-channel), Levels (histogram), Channel Mixer (3×3), Color Balance (shadows/midtones/highlights) |
| AI Tools | Upscaler (2×/4×), BG Remover, Segmentation (SAM), Smart Eraser — all client-side ONNX |
| ComfyUI Bridge | Connect to local/remote ComfyUI for inpainting, style transfer, generation |
| Image Info | Dimensions, DPI, ICC Profile, bit depth, EXIF, export configuration |
Option Bars
| Bar | Controls |
|---|---|
| Clip Options | Clip shapes (Rect, Ellipse Path, Lasso, Wand, SAM), aspect-ratio presets (Free, 1:1, 4:3, 3:4, 16:9, 9:16, 2:3, 3:2), feather, anti-alias, Re-Canvas resize, branch clone, clipboard |
| Color Options | Eyedropper, color wheel (with pin toggle), paint bucket fill |
| Viewport Options | Zoom slider (up to 3200%), fit-to-viewport, 1:1, rotate, flip |
Text Tool
| Control | Action |
|---|---|
| Click canvas | Create new text layer |
| Single-click text | Edit inline |
| Enter | Commit editing (Shift+Enter = newline) |
| Escape | Cancel editing |
| [ / ] | Decrease / increase font size |
Viewport Navigation
| Input | Action |
|---|---|
| Drag on canvas (pan mode) | Pan |
| Middle mouse drag | Pan (any mode) |
| Trackpad two-finger scroll / Shift+scroll | Pan |
| Scroll wheel (mouse) / Alt+scroll / pinch | Zoom (centered on cursor) |
| Ctrl/Cmd+1 | Fit to viewport |
| Ctrl/Cmd+2 | Zoom to 100% |
Modifier Keys
| Key | Effect |
|---|---|
| Shift | Constrain proportions / snap angles |
| Alt/Option | Transform from center / clone |
| Space | Toggle Pan/Clip mode (tap, not hold — no temporary pan tool) |
| Ctrl/Cmd | System shortcuts |
Last updated: 2026-08-30