update description (for #31529)

src/vs/workbench/common/theme.ts

@@ -134,7 +134,7 @@ export const STATUS_BAR_FOREGROUND = registerColor('statusBar.foreground', {
 	dark: '#FFFFFF',
 	light: '#FFFFFF',
 	hc: '#FFFFFF'
-}, nls.localize('statusBarForeground', "Status bar foreground color. The status bar is shown in the bottom of the window."));
+}, nls.localize('statusBarForeground', "Status bar foreground color when a workspace is opened. The status bar is shown in the bottom of the window."));
 
 export const STATUS_BAR_NO_FOLDER_FOREGROUND = registerColor('statusBar.noFolderForeground', {
 	dark: STATUS_BAR_FOREGROUND,
@@ -146,7 +146,7 @@ export const STATUS_BAR_BACKGROUND = registerColor('statusBar.background', {
 	dark: '#007ACC',
 	light: '#007ACC',
 	hc: null
-}, nls.localize('statusBarBackground', "Standard status bar background color. The status bar is shown in the bottom of the window."));
+}, nls.localize('statusBarBackground', "Status bar background color when a workspace is opened. The status bar is shown in the bottom of the window."));
 
 export const STATUS_BAR_NO_FOLDER_BACKGROUND = registerColor('statusBar.noFolderBackground', {
 	dark: '#68217A',