@@ -93,7 +93,7 @@ export class CallStackView extends ViewPane {
9393 if ( thread && thread . stoppedDetails ) {
9494 this . pauseMessageLabel . textContent = thread . stoppedDetails . description || nls . localize ( 'debugStopped' , "Paused on {0}" , thread . stoppedDetails . reason || '' ) ;
9595 this . pauseMessageLabel . title = thread . stoppedDetails . text || '' ;
96- this . pauseMessageLabel . toggleAttribute ( 'exception' , thread . stoppedDetails . reason === 'exception' ) ;
96+ dom . toggleClass ( this . pauseMessageLabel , 'exception' , thread . stoppedDetails . reason === 'exception' ) ;
9797 this . pauseMessage . hidden = false ;
9898 if ( this . toolbar ) {
9999 this . toolbar . setActions ( [ ] ) ( ) ;
@@ -511,11 +511,11 @@ class StackFramesRenderer implements ITreeRenderer<IStackFrame, FuzzyScore, ISta
511511
512512 renderElement ( element : ITreeNode < IStackFrame , FuzzyScore > , index : number , data : IStackFrameTemplateData ) : void {
513513 const stackFrame = element . element ;
514- data . stackFrame . toggleAttribute ( 'disabled' , ! stackFrame . source || ! stackFrame . source . available || isDeemphasized ( stackFrame ) ) ;
515- data . stackFrame . toggleAttribute ( 'label' , stackFrame . presentationHint === 'label' ) ;
516- data . stackFrame . toggleAttribute ( 'subtle' , stackFrame . presentationHint === 'subtle' ) ;
514+ dom . toggleClass ( data . stackFrame , 'disabled' , ! stackFrame . source || ! stackFrame . source . available || isDeemphasized ( stackFrame ) ) ;
515+ dom . toggleClass ( data . stackFrame , 'label' , stackFrame . presentationHint === 'label' ) ;
516+ dom . toggleClass ( data . stackFrame , 'subtle' , stackFrame . presentationHint === 'subtle' ) ;
517517 const hasActions = ! ! stackFrame . thread . session . capabilities . supportsRestartFrame && stackFrame . presentationHint !== 'label' && stackFrame . presentationHint !== 'subtle' ;
518- data . stackFrame . toggleAttribute ( 'has-actions' , hasActions ) ;
518+ dom . toggleClass ( data . stackFrame , 'has-actions' , hasActions ) ;
519519
520520 data . file . title = stackFrame . source . inMemory ? stackFrame . source . uri . path : this . labelService . getUriLabel ( stackFrame . source . uri ) ;
521521 if ( stackFrame . source . raw . origin ) {
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