fix exception label foreground color for light theme

src/vs/workbench/contrib/debug/browser/debug.contribution.ts

@@ -600,7 +600,7 @@ const debugTokenExpressionBoolean = registerColor('debugTokenExpression.boolean'
 const debugTokenExpressionNumber = registerColor('debugTokenExpression.number', { dark: '#b5cea8', light: '#098658', hc: '#89d185' }, 'Foreground color for numbers in the debug views (ie. the Variables or Watch view).');
 const debugTokenExpressionError = registerColor('debugTokenExpression.error', { dark: '#f48771', light: '#e51400', hc: '#f48771' }, 'Foreground color for expression errors in the debug views (ie. the Variables or Watch view) and for error logs shown in the debug console.');
 
-const debugViewExceptionLabelForeground = registerColor('debugView.exceptionLabelForeground', { dark: foreground, light: foreground, hc: foreground }, 'Foreground color for a label shown in the CALL STACK view when the debugger breaks on an exception.');
+const debugViewExceptionLabelForeground = registerColor('debugView.exceptionLabelForeground', { dark: foreground, light: '#FFF', hc: foreground }, 'Foreground color for a label shown in the CALL STACK view when the debugger breaks on an exception.');
 const debugViewExceptionLabelBackground = registerColor('debugView.exceptionLabelBackground', { dark: '#6C2022', light: '#A31515', hc: '#6C2022' }, 'Background color for a label shown in the CALL STACK view when the debugger breaks on an exception.');
 const debugViewStateLabelForeground = registerColor('debugView.stateLabelForeground', { dark: foreground, light: foreground, hc: foreground }, 'Foreground color for a label in the CALL STACK view showing the current session\'s or thread\'s state.');
 const debugViewStateLabelBackground = registerColor('debugView.stateLabelBackground', { dark: '#88888844', light: '#88888844', hc: '#88888844' }, 'Background color for a label in the CALL STACK view showing the current session\'s or thread\'s state.');