Quality Glow

See the quality of your buildings at a glance. In vanilla, a legendary assembler looks almost exactly like a normal one: the only clue is a tiny badge in a corner. Quality Glow marks every uncommon, rare, epic and legendary building in its official quality colour, so a mixed factory becomes readable instantly.

Why it helps

Spot where your legendary machines are, and put your best modules there.
See which buildings are still normal and should be upgraded first.
Catch a blueprint that placed the wrong quality.

Features

Four styles: outline (default), ground glow, large badge, or outline + badge.
The outline has a dark backing, so it stays readable on any terrain (even orange legendary on desert sand).
Minimum quality: for example, only mark epic and legendary.
Always visible or Alt mode only.
Logistics skipped by default: belts, pipes, inserters, poles, walls, lamps and rails are not marked to avoid clutter (can be enabled).
Per-player hotkey to show or hide the markers (default Shift + Alt + Q).
Change settings in-game: all settings are map settings, no restart needed.
Markers follow building, rotation, flipping, cloning and upgrades, and vanish with the building.
Uses the quality prototypes' own colours: modded qualities work too.
Fully localised in English and French.

Settings (Settings → Mod settings → Map)

Marker style — Outline, Ground glow, Large badge, Outline + badge.
Display — Always, or Alt mode only.
Minimum quality marked — Uncommon and above (default), Rare and above, Epic and above, Legendary only.
Also mark logistics — off by default.
Opacity — default 0.9.
Outline thickness — default 3 pixels.

Requires the Quality mod (included with Space Age). Without it, the mod simply does nothing.