Capture a 16:9 regionShare a 1920×1080 display, or resize the window to 16:9 and share the window — not the whole desktop. What the encoder receives already matches the canvas, so nothing is scaled.

Never

Stretch a 4:3 source to fillType goes wide, circles go oval, the org's icons stop looking like Salesforce's. Nobody consciously notices — everybody registers “this looks cheap.” Aspect ratio is never a scaling option.

// live session 04

Do instead

Pillarbox on the brand canvasA 4:3 app, a phone screencast, a legacy PDF — centre it at true ratio and let the navy plus hairline pattern carry the gap. The dead space becomes brand, not letterbox black.

DISPLAY

1920×1080, scaling at 100%A HiDPI screen at default scaling sends a 2× frame the encoder downsamples — every hairline in the org UI turns to mush. Set the shared display to native 1080p.

WINDOW

Share one window, never the desktopNotifications, calendar popups, the other tab with your credentials in it. A window share is also a 16:9 crop you control.

DECK

Export slides at 16:9, 1920×1080Never 4:3, never A4 landscape. A deck built at the canvas size needs no scaling at all — the sharpest possible path to the viewer.

BROWSER

Zoom to 125–150% before you startNot mid-demo. Changing zoom while live reflows the page and the viewer loses their place; do it once, in the starting-soon scene.

EDITOR

Code at 18–20pt, high-contrast themeWrap long lines instead of scrolling sideways. If a snippet needs more than ~14 visible lines, it belongs in a slide, not in the editor.

CAM ZONE

Keep the bottom-right 22% clearThat corner belongs to the camera and the watermark. Don't park the record detail panel, the console, or the thing you're about to click there.

10px

SELECT Id FROM Account

unreadable on a phone — never

13px

SELECT Id FROM Account

borderline — slides only

16px

SELECT Id FROM Account

minimum for shared UI

19px

SELECT Id FROM Account

target for code and SOQL

Half the audience watches a live session on a phone held at arm's length — roughly a third of the apparent size shown here. If you cannot read it on your own phone from the couch, it is not on screen yet: zoom in, or put it on a slide.