Annotating
Spotlights
Dim everything except the part you are talking about, as a rectangle or an ellipse.
A spotlight dims the whole plot except one region. Where a zone adds something, a spotlight subtracts everything else — which is far stronger when the chart is busy.
Press s and drag.
Shape
Rectangle or ellipse. The ellipse is softer and reads as "around here"; the rectangle reads as "this exact range".
The three controls that matter
| Field | Effect |
|---|---|
| Dim opacity | How dark everything outside gets |
| Feather | How soft the edge of the hole is |
| Ring | An optional outline around the hole itself |
Two combinations cover most uses:
- Dim
0+ a ring — no dimming at all, just a highlight. Use it when the chart is already clean and you only need to point. - Moderate dim + heavy feather — a soft wide glow. Use it when you want attention without hiding the surrounding context.
Full dim with no feather is available and rarely right: it hides the very context that makes the highlighted part mean anything.
Timing
The usual three fields. A spotlight is one of the few annotations where the disappears at column earns its keep — the effect is strong enough that leaving it up for the rest of the video becomes tiring.
Reveal
Fading a spotlight in is almost always better than an instant cut, because the dimming covers the entire frame and an instant change of the whole picture reads as a glitch. A short fade over two or three candle-widths is enough.
Presets
Several spotlight quick-styles ship built in. Saving your own captures the shape's look and its motion, including the ring, which is one of the fields that only exists once a shape does — so it travels in a preset but is not part of the tool's remembered default.