fields:
    name:
        label: Name
        span: left
        type: text
        required: true
    logo:
        label: Logo
        span: right
        type: fileupload
        mode: image
        imageWidth: 160
        imageHeight: 160
    is_published:
        label: Published?
        span: left
        type: switch
        default: true
        comment: Is this brand published?
    description:
        label: Description
        type: markdown
    keywords:
        label: Keywords
        type: text
secondaryTabs:
    fields:
        images:
            label: Images
            type: fileupload
            mode: image
            imageHeight: 260
            imageWidth: 260
            tab: Misc

fields:
    name:
        label: Name
        span: left
        type: text
        required: true
    logo:
        label: Logo
        span: right
        type: fileupload
        mode: image
        imageWidth: 160
        imageHeight: 160
        thumbOptions:
            mode: auto
    is_published:
        label: Published?
        span: left
        type: switch
        default: true
        comment: Is this brand published?
    description:
        label: Description
        type: markdown
    keywords:
        label: Keywords
        type: text
secondaryTabs:
    fields:
        images:
            label: Images
            type: fileupload
            mode: image
            imageHeight: 260
            imageWidth: 260
            tab: Misc

Add thumbOptions to set auto mode
Add thumbOptions to set auto mode
