extension-develop/dist/types.d.ts

The develop step of Extension.js

export type ChromeManifest = Partial<chrome.runtime.ManifestV2> & Partial<chrome.runtime.ManifestV3> & {
    browser_action?: {
        theme_icons?: ThemeIcon[];
    };
};
export type Manifest = ChromeManifest;
export interface ThemeIcon {
    light: string;
    dark: string;
    size?: number;
}