Case Study · 02 · Galp

Iconography & Styleguide

Four distinct icon styles from a single grid — plus a full component library — unifying a fragmented visual language across an energy company's entire digital ecosystem.

Year
2019
Role
Designer
Client
Galp
Scope
Iconography + Styleguide
Galp iconography and styleguide
Overview

Unifying a fragmented
visual language

Galp's digital products — web apps and mobile apps — were using inconsistent icon and component styles. Different products had sourced icons from different libraries, resulting in a disjointed visual experience that undermined brand cohesion.

The challenge was analysing all components in use across the ecosystem and unifying them into one consistent system that could serve every product and platform.

I created a unified iconography system with four distinct styles and a UI component library — buttons, badges, switches, sliders, tabs, and cards — all documented in a comprehensive style guide.

The result brought visual consistency across web and mobile products, eliminated duplicate components, and provided a scalable foundation for future growth.

Style Guide

A documented
component library

Beyond iconography, Galp's products needed a single source of truth for UI. I audited every component in use across web and mobile, then consolidated them into one documented library — buttons, badges, switches, sliders, tabs and cards, each rebuilt to a shared specification.

States, sizing, spacing and behaviour were defined once, so the same component behaved identically everywhere it appeared.

The style guide captured usage rules, do's and don'ts, and the rationale behind each decision — letting teams apply components consistently without reinventing them.

It became the reference that kept every product visually aligned and accelerated design-to-development handoff.

Galp UI component library — buttons, badges, switches, sliders, tabs and cards
Iconography

Four styles,
one system

The unified Galp icon set across the digital ecosystem
Style 01

Galp Form Fill

Bold, filled icons with the Galp form language — for primary contexts and marketing surfaces.

Style 02

Galp Form Outline

Outlined counterparts following the same construction, for lighter, dense UI contexts.

Style 03

Simple Fill

Stripped-back filled icons for compact interfaces where clarity matters most.

Style 04

Simple Outline

Minimal outline set for the densest UI — toolbars, tables, and system controls.

Construction

Grid &
rules

All icons are constructed on a 24×24px grid with a 2px safe zone. Key shapes are optically corrected to appear visually consistent rather than mathematically identical.

Stroke width is fixed at 1.5px for outline icons. Corner radii follow a consistent rule — 1px inner, 2px outer — creating subtle, uniform roundness across the set.

Each icon follows strict alignment rules: centred within the grid, optically balanced, and tested at both 16px and 24px to ensure readability at all target sizes.

Naming as a feature. A strict, function-based naming convention made icons discoverable and safe to extend — good names treated as part of the design, not an afterthought.

Outcomes

What was
delivered

4
Icon styles, one grid
1
Unified component library
24px
Base construction grid
0
Conflicting components
Iconography Styleguide Component Library Grid Systems Naming Conventions
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