Plot Config: Grid (lab)

The ComfyLab XY Plot system gives you a grid of images out of the box - and it looks like it. Default grids are functional but ugly: cramped cells, tiny headers, a flat gray background. Plot Config: Grid (lab) is the optional styling node that fixes that. You plug it into the Render node's grid-config slot and suddenly you control the gaps, fonts, colors, padding, and can even make the whole grid transparent for compositing over a background image.

How it works

It's a pure configuration node: it emits a plot_config_grid output of the custom PLOT_CONFIG_GRID type, which you wire into XY Plot: Render (lab)'s config: grid input. Nothing else changes - the queue, the sampler, all of it stays untouched. Render reads this config when it assembles the final grid, so it only matters at the end of a run. It's the sibling of Plot Config: Header/Footer (lab), which styles the page headers instead.

The inputs that matter

There are nine, and you'll realistically touch about four:

• gap (default 20) - spacing in pixels between grid cells. This is the single biggest visual upgrade; crank it up and a grid stops feeling like a contact sheet.
• background_color (default #b9b9b9) - accepts a color name (red) or hex (#aaa, #b9b9b9). The special value transparent renders the grid as RGBA, which is the trick for overlaying it on a custom background image - combine it with the pack's Load Image (RGBA) (lab) node and you get grids that look designed rather than generated.
• font (default Roboto-Regular.ttf) - one of the four Roboto faces shipped with the pack, or the full path to any TTF on your machine. The four bundled fonts keep you honest; a custom path is there if you want a brand look.
• font_size (default 50) and font_color (default #444) - the headers' type size and color.

The rest are refinements: pad_col_headers and pad_row_headers (vertical/horizontal padding around headers), and wrap_col_headers / wrap_row_headers - set one above 0 and header text wraps after that many characters, breaking smartly on hyphens when it can.

Gotchas

Colors accept names or hex, and the tooltip on the node spells that out - blue and #0000ff both work. The one that catches people: transparent is the only way to get an RGBA grid, and if you use it you need a background behind it, or you'll save a see-through grid. And remember this node does nothing on its own - no PLOT_CONFIG_GRID consumer, no effect. It only exists inside the Queue → ... → Render flow.

Install

It's part of ComfyLab Pack:

cd ComfyUI/custom_nodes
git clone https://github.com/bugltd/ComfyLab-Pack.git
cd ComfyLab-Pack
pip install -r requirements.txt

Or ComfyUI Manager → ComfyLab Pack, then restart. No model files to download; the pack's only heavy dependency is opencv-python. If you're new to the XY Plot flow, the pack's own tutorials ("pimp my grid" is the relevant one) walk through exactly how these config nodes slot in.