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Styling layers

Symbolise by value, add labels and configure popups using the layer style panel.

Select a layer’s settings button in the Layers tab to open the style panel. It has four tabs: Style, Labels, Popups and Filter.

Screenshot placeholder — the Style tab with the Single / Category / Graduated toggle.

Style

At the top of the Style tab, choose how features are coloured:

  • Single — one style for every feature. Set Fill colour, Outline colour, Stroke width and opacity, or turn off fill/outline entirely.
  • Category — colour by the distinct values of a Field (e.g. a type or status column). Pick a colour scheme, then tweak individual category colours and labels. Anything not matched falls into Other features.
  • Graduated — colour by a numeric Field split into Classes. Choose the number of classes, a Method (Quantile or Equal interval), and a colour ramp. Apply to lets you target the Fill, Stroke, or Both.

For category and graduated styles, Generate from data rebuilds the classes from the current layer, and Bulk edit style / Edit shared style changes opacity, outline and size across all classes at once. Use Apply to (Fill / Stroke / Both) to choose what the colours drive, and the colour-scheme picker’s Flip to reverse a ramp. + creates a custom colour scheme — a named set of colours (categorical or gradient) you can reuse on any layer.

Point symbols & favourites

For point layers, pick a Shape (circle, square, triangle, star, diamond, cross, plus) or a glyph — or a KML icon if the layer carries its own. Set Size, Fill and Outline with their own opacities. Save a look you like with Save as favourite, then reapply it from Apply favourite… on any layer.

Raster & imagery

Raster and Cloud-Optimized GeoTIFF layers have their own controls: Brightness, Contrast and Saturation for any raster, and for single-band COGs a Colour ramp (with Invert), a Stretch (band min/max and Gamma) and Mask thresholds to hide values above or below a cut-off. Reset adjustments / Reset COG style return to the defaults.

Zoom range

Every layer can be limited to a min and max zoom so it only draws between certain scales — handy for detail that should appear only when zoomed in. Use the use buttons to capture the current zoom, and Clear to remove the limit.

Labels

In the Labels tab, pick a Field to label features by, or write a Formula like {field_1} - {field_2} to combine fields (the formula overrides the single field). Then set:

  • Size in pixels, Colour and a Halo colour for legibility over busy backgrounds.
  • Position, plus Offset X / Y to nudge labels off the feature.
  • A Zoom range so labels only appear between a minimum and maximum zoom.

For line layers you can also choose Placement — At feature or Along line.

Popups

The Popups tab controls what appears when someone clicks a feature. Toggle popups on, set an optional Title (it supports {field} tokens), then choose which Fields to show, rename them, reorder them, and set each one’s type/format. Photos attached to a feature show up here as a gallery.

Filter

The Filter tab limits which features draw, without deleting anything. Depending on the layer you’ll get an expression builder or a SQL WHERE clause box — for example name IS NOT NULL AND value > 0. Apply filter to activate it; Clear to remove it. A badge marks layers that have an active filter.

Next steps