Vizard Agent

How to make a set of YouTube thumbnails in your brand colours

Last updated 2026-08-30 · 7 min read

Give Vizard Agent your exact palette and the headlines you need. Vizard Agent checks which of your brand typefaces are available and finds the closest matches, generates the artwork for each thumbnail, composes the headline, rebalances the layout, and iterates the details until the image reads at a glance.

What is the short version?

A thumbnail has to work at the size of a postage stamp, in your colours, with a headline somebody reads in half a second. Making one is fiddly; making a matching set is the same fiddliness repeated, which is why channels end up with inconsistent thumbnails.

  1. Go to Vizard Agent and give the exact brand palette.
  2. Give the headline for each thumbnail.
  3. Say it is a set, so they match each other.

What do you need before you start?

The palette and the headlines. Vizard Agent enforces the colours strictly when you give hex codes rather than names, and the headlines are the part only you can write because they are the video's promise rather than its description.

What do you type into Vizard Agent?

Give the hex codes rather than describing the colours. Vizard Agent enforces an exact palette when it has exact values, and "navy and pink" produces something in the right family that will not sit alongside your existing thumbnails.

Prompt

Make a series of [1280x720] YouTube thumbnails for [the channel]. Brand palette, strictly: [#0a053e navy, #ff0063 pink, #4ac7e5 cyan, cream]. Headlines: [one per thumbnail]. They need to match each other as a set.

Variants worth knowing:

What does Vizard Agent actually do?

Here is the order Vizard Agent worked in on a real set of channel thumbnails. The interesting part is how much of it is iteration: the arrow gets placed, checked, moved, checked again, re-routed and checked once more before anybody else sees the thumbnail.

  1. Checks whether your brand typefaces are available and reviews the past project files.
  2. Looks for the closest available fonts to the brand typefaces.
  3. Checks past uploads for the logo and other brand context.
  4. Checks the image generation options available to it.
  5. Generates the artwork for the first thumbnail's concept.
  6. Reviews the generated artwork, then assembles the thumbnail with its headline.
  7. Reviews the composition and rebalances the headline layout, then reviews it again.
  8. Draws a bright arrow pointing at the subject and checks where it landed.
  9. Moves the arrow to start at the right word, checks it, re-routes it clear of the headline, checks again, then generates the artwork for the next thumbnail.

Steps 8 and 9 are what a thumbnail actually is. An arrow that crosses the headline makes both unreadable at small size, and finding the placement that serves the picture and the text at once takes three attempts rather than one.

What does the result look like?

A set of sixteen-by-nine thumbnails at the platform's dimensions, all in the same enforced palette, all using the same typeface, each with its own generated artwork and headline, and each one legible at the size a browser actually shows it.

They look like a set. That is the whole reason to make them together — a channel where every thumbnail shares a palette and a layout is recognisable in a feed before anybody reads a word of it.

When does this not work well?

A thumbnail is a design job on a very small canvas indeed, and a good deal of what you might want simply does not survive being shrunk to that size. These are the limits Vizard Agent designs within rather than pretending away.

How do you fix a result that came back wrong?

Name the thumbnail and the element that is wrong. Vizard Agent keeps every generated artwork, all the layout attempts and the palette, so a headline can be re-set or an arrow moved without regenerating the artwork underneath it.

How does Vizard Agent compare to doing it yourself?

By hand this means a design tool, your palette pasted in, and an hour per thumbnail — most of which goes on moving the headline and the arrow around until the composition works. Across a channel that is the job nobody keeps up with.

By hand Vizard Agent
The palette Pasted, then drifts Enforced from hex codes
Typefaces Whatever is installed Checked, with nearest matches found
Layout Nudge until it looks right Composed, reviewed and rebalanced
Consistency Each one made separately Built as a set

Common questions

Can Vizard Agent match my exact brand colours? Yes, given hex codes. Vizard Agent treats colour names as a family rather than a value.

What if my brand font is not available? Vizard Agent finds the closest available match and tells you which it used.

Does it generate the artwork? Yes. Vizard Agent generates artwork per thumbnail, to whatever concept the headline needs.

How many can it make at once? A full set. Vizard Agent making them together is what keeps them consistent.

Will they be legible small? That is the constraint Vizard Agent designs to, and it reviews the composition to check.

Why move the arrow three times? Because an arrow has to point at the right thing without crossing the headline, and those two requirements pull against each other. Three placements is what it takes to satisfy both.

Can I supply my own artwork? Yes. Vizard Agent composes the thumbnail around images you provide.

Should the headline repeat the title? No. The title is already on screen; the thumbnail should say the other half.

Can it match my existing thumbnails? Yes. Point at them and Vizard Agent reads the palette and the layout from them.

Should I remake old thumbnails to match? Often worth it for the recent ones. Vizard Agent rebuilds them in the same palette and layout, and a channel page where the last dozen match reads as deliberate in a way a mixed grid does not.

Should the thumbnail show a face? Where there is one to show. Vizard Agent sizes it large enough to read at thumbnail scale, since a person small in the frame becomes an unrecognisable smudge at the size a browser displays.

Can it make the matching post covers too? Yes, from the same palette. Vizard Agent reuses the colours and the layout logic across formats, so a thumbnail and a social tile for the same video look related rather than merely similar.

Does Vizard Agent check each thumbnail? Yes. It reviews every composition and rebalances what does not read.