By default ui-button uppercase the label. I have tried to use the CSS field and a very basic ui-template (see below) to have it "capitalized" instead but it does not seem to work.
Am I doing something wrong or is that a known problem?
[
    {
        "id": "97306cc1f138f3a8",
        "type": "ui_template",
        "z": "555d3e127e247e2f",
        "group": "31529018.f1ea8",
        "name": "",
        "order": 10,
        "width": 0,
        "height": 0,
        "format": "<style>\n.test {\n  text-transform: capitalize;\n}\n</style>\n",
        "storeOutMessages": true,
        "fwdInMessages": true,
        "resendOnRefresh": true,
        "templateScope": "local",
        "className": "",
        "x": 480,
        "y": 180,
        "wires": [
            []
        ]
    },
    {
        "id": "a2d1951a0b43406f",
        "type": "ui_button",
        "z": "555d3e127e247e2f",
        "name": "",
        "group": "31529018.f1ea8",
        "order": 17,
        "width": 0,
        "height": 0,
        "passthru": false,
        "label": "my button",
        "tooltip": "",
        "color": "",
        "bgcolor": "",
        "className": "test",
        "icon": "",
        "payload": "",
        "payloadType": "str",
        "topic": "topic",
        "topicType": "msg",
        "x": 320,
        "y": 180,
        "wires": [
            []
        ]
    },
    {
        "id": "31529018.f1ea8",
        "type": "ui_group",
        "name": "Default",
        "tab": "111148ee.cdb697",
        "order": 1,
        "disp": true,
        "width": "6",
        "collapse": false
    },
    {
        "id": "111148ee.cdb697",
        "type": "ui_tab",
        "name": "Home",
        "icon": "dashboard",
        "disabled": false,
        "hidden": false
    }
]
