// What it does
Light / Dark button in the top bar flips the viewport background. Top-bar label toggles between Light and Dark.
Brightness popover opens from the sun icon in the top-right corner of the viewport. Slider runs 50–300% (default 210%) and scales every scene light at once.
// When to use it
- Switch theme any time the model's painted colours blur into the background — dark colours read better on a light background, light colours on dark.
- Raise brightness if a dark-painted model still looks flat after a theme swap.
- Drop brightness for a moodier, more photographic look (good for screenshots).
// How to use it
- Top bar → Light — viewport flips to a pale background. Click again to flip back.
- Sun icon at the top-right of the viewport — opens the Brightness popover.
- Drag the slider to taste. ~120% gives a darker, photographic feel; ~250% lifts detail.
// Tips
- Brightness is not on the Setup tab. It's a floating popover on the viewport itself. The earlier walkthrough used to point at the wrong place.
- Cranking brightness to 300% isn't usually the answer — try flipping to Light theme first.