name: "Control",
                icon: `/images/icon/process.png`,
                class: "inverted",
                color: "#ed3467",
                blocks: [{
                        xml: `
                                <block type="controls_wait">
                                    <value name="time">
                                        <shadow type="math_number">
                                            <field name="NUM">1</field>
                                        </shadow>
                                    </value>
                                </block>
                            `
                    }

i want to add class like the class in html in the json the class will be class="inverted" i can change it in html inspect and it work but idk how to do it here and sorry i am beginner

<img src="/./images/icon/led.png" alt="" class="inverted"> this is how i want to be in html but from the inspect i add the class