# MentorTheme enum

> The MentorTheme enum of Novior.MentorAgent.Abstractions.Models: Visual theme of the MentorAgent widget.

- URL: https://docs.mentoragent.net/api/novior-mentoragent-abstractions-models/mentortheme
- Verified with: MentorAgent 1.2.0
- Last updated: 2026-10-27
- Packages: Novior.MentorAgent.Abstractions

Visual theme of the MentorAgent widget.

## Definition

Namespace: `Novior.MentorAgent.Abstractions.Models`. Package: `Novior.MentorAgent.Abstractions`.

`public enum MentorTheme`

```shell
dotnet add package Novior.MentorAgent.Abstractions
```

## Values

| Value | Number | Description |
|---|---|---|
| `Default` | 0 | Dark translucent glass with a blue accent: the baseline in `MentorAgent.css`, a navy panel at 55% opacity over a blur. On a light page it shows as dark grey with the page behind it; there, use [`MentorTheme.Minimal`](https://docs.mentoragent.net/api/novior-mentoragent-abstractions-models/mentortheme). |
| `Dark` | 1 | Dark and nearly opaque: a near-black panel at 85%, darker than [`MentorTheme.Default`](https://docs.mentoragent.net/api/novior-mentoragent-abstractions-models/mentortheme). For apps that are already dark, where the default glass looks washed out. |
| `Minimal` | 2 | Light: a white panel, thin borders and a soft shadow. The theme for a light page. |
| `Custom` | 3 | No theme overrides: the widget renders like [`MentorTheme.Default`](https://docs.mentoragent.net/api/novior-mentoragent-abstractions-models/mentortheme), from the baseline values in `MentorAgent.css`, and the host's own stylesheet changes what it overrides. `PrimaryColor`, if set, is still applied. Nothing has to be set by hand. |
| `Auto` | 4 | Follows the visitor's system setting (`prefers-color-scheme`): [`MentorTheme.Minimal`](https://docs.mentoragent.net/api/novior-mentoragent-abstractions-models/mentortheme) when it asks for light, which is also what a browser reports when the system states no preference, and [`MentorTheme.Default`](https://docs.mentoragent.net/api/novior-mentoragent-abstractions-models/mentortheme) when it asks for dark. It follows the system, not your page: on a page that is always light, a visitor whose system is dark sees the dark widget. |

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