add border colors in dark theme

Author: joaomoreno

themes/github-sharp-dark-theme.color-theme.json

@@ -15,7 +15,7 @@
     "editor.lineHighlightBackground": "#353e49",
     "editorBracketMatch.background": "#242729f8",
     "editorBracketMatch.border": "#6c6f72",
-    "editorGroup.border": "#212427",
+    "editorGroup.border": "#2d2d2d",
     "editorGroupHeader.tabsBackground": "#212424",
     "editorGroupHeader.tabsBorder": "#262c30",
     "editorGutter.addedBackground": "#206420",
@@ -43,11 +43,11 @@
     "menu.separatorBackground": "#424242",
     "menubar.selectionBackground": "#2a3538",
     "panel.background": "#1c1d1e",
-    "panel.border": "#212427",
+    "panel.border": "#2d2d2d",
     "panelTitle.activeBorder": "#af7a57",
     "scrollbar.shadow": "#252525",
     "sideBar.background": "#1c1d1e",
-    "sideBar.border": "#212427",
+    "sideBar.border": "#2d2d2d",
     "sideBar.foreground": "#a1a5a8",
     "sideBarSectionHeader.background": "#18191a",
     "sideBarSectionHeader.border": "#212427",