danger color for payable functions

src/app/ui/multiParamManager.js

@@ -207,7 +207,9 @@ class MultiParamManager {
     if (this.funABI.payable === true) {
       contractProperty.classList.add(css.payable)
       button.setAttribute('title', (title + ' - transact (payable)'))
-      this.contractActionsContainerSingle.querySelector('button').setAttribute('title', (title + ' - transact (payable)'))
+      let funButton = this.contractActionsContainerSingle.querySelector('button')
+      funButton.setAttribute('title', (title + ' - transact (payable)'))
+      funButton.classList.add('btn-danger')
     }
 
     if (!this.lookupOnly && this.funABI.payable === false) {