Light Leak

Bright areas bleed a soft halo into their surroundings, and the halo can pulse so objects, text or shapes seem to emit light.

This is for a motion graphics video. Add a "Bloom" (also called a glow effect) to the bright parts of [scene]: let their light spill past their edges as a soft halo, so they look like they are emitting light.
The halo belongs to the bright object and travels with it, fading out smoothly with no hard edge — unlike a light leak, which washes in from the frame edge, or a lens flare, which adds rings and streaks.
Hold it for [duration] and let the halo breathe gently, swelling and easing back like a slow pulse.

Starbursts, rings and streaks of scattered light appear and slide as a bright source passes the lens, added digitally to graphics and footage.

This is for a motion graphics video. Add a "Lens Flare" to [scene]: as a bright light source crosses the frame, show the light scattering inside the lens — a starburst and a long streak on the source itself, and a chain of rings and soft discs strung along the line from the source through the centre of the frame.
The chain must slide as the source moves, with the far ghosts travelling the opposite way — that sliding, shaped light is what separates it from a light leak, which is only a shapeless wash from the edge.
Let the source pass through over [duration], and fade the flare in and out as it enters and leaves the frame.

One image or shape smoothly warps into another while cross-dissolving.

This is for a motion graphics video. In [scene], use "Morphing" (also called an image morph or morph): one subject smoothly warps into another while the two pictures cross-dissolve.
The outline should bend continuously from the first shape into the second as the surface blends between them, so it reads as one thing transforming — a plain dissolve would only fade one picture over the other without reshaping anything.
Give the change [duration], and hold on each subject before and after so the viewer can read what it turned into.

Fast-moving objects are smeared along their path as if shot with a longer exposure, which makes quick motion look smooth; unlike Echo it is a continuous streak, not separate copies.

This is for a motion graphics video. Add "Motion Blur" (also called motion smear) to the fast moves in [scene]: whatever moves quickly should streak along its own path, as if the shutter stayed open while it travelled.
Blur only the things that are moving, in the direction they move, as one continuous streak that grows with speed — not separate trailing copies, which is an echo, and not the whole frame, which is a whip pan. Anything holding still stays sharp.
Keep it on for [duration], with a wide shutter angle for long soft streaks or a narrow one for short crisp ones.

A small inset video window plays over the main picture and can be moved or resized.

This is for a motion graphics video. Add a "Picture-in-Picture" (also called PiP or TV in TV) to [scene]: a small inset window plays a second video over the main picture.
Both pictures should keep playing at the same time, and the main one still fills the whole frame behind the window — if the frame is divided into panels that sit side by side, that is a split screen.
Over [duration], bring the window in at a corner, then move or resize it so it stays clear of what matters in the main picture.