Bitrush Panel UI Kit — title-barred panels and buttons

Flat Y2K panels — thick straight outlines, solid yellow blocks, electric blue trace. No glow and no gradient: this style is a printed template, and the restraint is the whole look.

Two nine-slice panels — a title-barred window frame with 0 px corners and a recessed inset frame with 0 px corners — cover almost every box a menu needs: dialogs, inventory grids, list backgrounds, tooltips and stat panels. A title band is built into the top of the panel, so a dialog header needs no second sprite and no manual alignment. Both stretch cleanly to any size because the corners never scale and the centre is a flat fill.

On top of the panels sit four tab button states: default, hover, pressed and disabled. They are drawn on the same 148×52 base with 0 px corners, so you can swap the texture on a single button widget and get the whole interaction loop without moving a rectangle. The pressed state drops its face two pixels and removes the top highlight rather than just darkening, which is what makes a button feel clicked rather than merely recoloured.

Everything ships twice. The SVG sources are the files the kit was drawn in — open them, change the six ink black tones or the single signal yellow accent, and re-export. The PNG exports are flat, transparent and pre-scaled at 1x, 2x and 4x for engines that want bitmaps, with no premultiplied alpha and no baked-in shadow outside the sprite bounds.

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