HTMLDocument.registerElement is deprecated.

[Tweener78]

Use customElements.define instead of document.registerElement see https://javascript.info/custom-elements

HTMLDocument.registerElement (file:///C:/Users/sohei/AppData/Local/Programs/Pulsar/resources/app.asar/static/index.js:100:12)
registerElement (C:\Users\sohei\.pulsar\packages\tabletopsimulator-lua\node_modules\space-pen\lib\space-pen.js:66:88)
Builder.openTag (C:\Users\sohei\.pulsar\packages\tabletopsimulator-lua\node_modules\space-pen\lib\space-pen.js:297:27)
Builder.tag (C:\Users\sohei\.pulsar\packages\tabletopsimulator-lua\node_modules\space-pen\lib\space-pen.js:274:12)
Function.div (C:\Users\sohei\.pulsar\packages\tabletopsimulator-lua\node_modules\space-pen\lib\space-pen.js:83:49)
Function.content (C:\Users\sohei\.pulsar\packages\tabletopsimulator-lua\lib\tts-panel-view.coffee:52:19)