Caption Styling

The way your captions look matters. Captions that are hard to read, poorly positioned, or clash with your visuals can distract from your content instead of enhancing it. StarZero Agents gives you several ways to customize how your captions appear on screen.

Caption Presets

Styling in StarZero Agents starts with choosing a caption preset. Each preset is a complete visual package — colors, animations, text effects, and timing are all built in. Instead of tweaking individual properties one by one, you pick a preset that matches the look you're going for and refine from there.

You can browse and select presets in two ways:

• From the chat — ask for captions and StarZero Agents shows the preset gallery in the conversation. See Adding and Removing Captions.
• From the editor — click the Captions icon in the Editor Side Panel to open a built-in caption style picker right next to your video preview.

Style Variants

Many presets come with multiple style variants. These are different visual treatments within the same overall style — for example, different color schemes, animation intensities, or text decorations. You can preview each variant in the caption gallery before applying it.

"Switch to the Bold variant of the current caption style"

Inline Customization

When you select a preset from the gallery, a text field appears where you can describe adjustments — for example, "use blue tones" or "make the text bolder." StarZero Agents applies these on top of the chosen style, letting you fine-tune the look without switching to a different preset.

Caption Editor

For more precise control, every caption style card in the gallery has an edit button (pencil icon). Clicking it opens the caption editor — a full property panel beside a live animated preview of your captions.

In the editor you can adjust individual properties like colors, font sizes, animation speeds, and highlight styles. The controls vary depending on the preset — each one exposes its own set of adjustable options. Changes are reflected instantly in the live preview so you can see exactly what you're getting.

Properties are grouped into collapsible sections. Click any section header to expand or collapse it, so you can focus on the settings you care about and keep the panel tidy. Many fields include an info icon (ℹ) next to the label. Hover over it to see a short description of what the property does — handy when a label alone isn't obvious. Section headers can have tooltips too, explaining the purpose of that group of settings.

When a preset has many options for a setting — like animation modes or layout variants — the editor shows a dropdown instead of cramped pill buttons, so every choice is easy to read and select.

If you've made changes and want to start over, click the Reset button at the top of the controls. This reverts all properties back to the preset's defaults without closing the editor, so you can quickly try a different direction.

If something goes wrong in the preview — for example, a custom font URL can't be loaded or the style can't render — an error banner appears at the bottom of the preview explaining the problem. Fix the issue (such as correcting a font URL) and the preview recovers automatically.

When you're happy with the result, click Save changes to commit your edits as a Custom style. The custom style appears as an extra card in the caption gallery, so you can switch between it and the built-in styles at any time. Selecting a different built-in style and coming back to your Custom card restores your edits.

Sharing Caption Styles

The editor includes Copy style and Paste style buttons. Copy style saves your current settings to the clipboard as a shareable snippet. Paste style applies a previously copied snippet — even one from a different session or shared by someone else. This makes it easy to reuse a look across projects or hand a style to a colleague.

Custom Fonts

You can override the default font for any caption preset by providing a font URL. This is great for matching your brand identity or achieving a specific aesthetic:

"Use this font for captions: https://fonts.google.com/specimen/Bangers"

StarZero Agents supports Google Fonts URLs and direct links to font files. When you provide a font URL in the caption gallery, all previews update in real time so you can see how each preset looks with your typeface.

Speaker Colors

Several presets — including Word Background Highlight and Kamua — support speaker colors. When your video has multiple speakers, captions can use a different highlight color for each person. This makes it easy for viewers to tell who's talking, especially in interviews and podcasts.

Some presets offer a "Speaker Colors" variant that enables this automatically. You can also ask StarZero Agents to assign specific colors to speakers:

"Use blue highlights for the host and orange for the guest"

Position and Size

Caption presets are added as overlays, which means you have full control over where they appear and how much of the frame they occupy:

• Position — Where on screen the captions appear. By default, captions are placed near the bottom of the frame.
• Size — How much of the video canvas the caption area takes up. A typical setup uses about 80-90% of the width and 35-50% of the height.

"Move the captions to the center of the screen"

"Make the caption area larger"

"Place captions at the top instead of the bottom"

Tips

• Start with the gallery. Browsing presets visually is the fastest way to find a style you like. It's much easier than trying to describe the exact look you want.
• Try variants. If you like a preset's overall feel but not quite the colors or intensity, check if it has other variants before switching to a different preset entirely.
• Custom fonts make a big difference. A brand font can tie your captions into your overall visual identity. Try it — the live preview in the gallery makes it risk-free.
• Keep captions readable. Wherever you position them, make sure they don't cover important visual elements. The default bottom placement works well for most content.