Sandbox Navigation Kit

Sandbox Navigation Kit is a set of 15 navigation and input components drawn in the voxel style, where each surface is the front face of a cube with a lit top face and a shaded right face. It contains active and inactive tabs, a scrollbar track, thumb and two arrows, a dropdown in closed and open states with its menu, idle and focused text fields and round close, back, plus and minus buttons.

Most free UI kits stop at panels and buttons, which means the first settings screen you build is the moment you start drawing your own art. This is the rest of it: the parts a menu actually needs before it works.

The extrusion is real geometry rather than a shadow: the light angle never changes, there are exactly three tones per block, and the front face is inset so the cube stays inside its own sprite bounds.

Inside that style this is the Sandbox reading of it: a light interface on a desert tan palette with sky blue accents, built around a header band across the top of the frame, chamfered buttons at 112x40, banded bars divided into 12 segments, and two-tone icons on a 16px grid. Those measurements are why two families can share an art style without being interchangeable: the style decides how an edge is drawn, the numbers decide what the interface is for.

The focused text field widens its outline instead of only changing colour, because a focus ring that is only a hue disappears in high-contrast mode and takes keyboard navigation with it. The active tab merges into the surface below it rather than just brightening, which is what makes it read as connected.

Every sprite ships as an editable SVG and as transparent PNG at 1x, 2x and 4x, so you can drop the PNGs straight into an engine or open the vector and change a colour. Built to the same measurements as the rest of the Sandbox family, which means this kit and the Sandbox panel kit line up without either being resized. A good fit for voxel and blocky games.

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