OcBootManagementLib: Implement colouring picker

Include/Library/OcBootManagementLib.h

@@ -399,6 +399,10 @@ typedef struct {
   //
   CONST CHAR8      *TitleSuffix;
   //
+  // Console attributes. 0 is reserved as disabled.
+  //
+  UINT32           ConsoleAttributes;
+  //
   // Enable polling boot arguments.
   //
   BOOLEAN          PollAppleHotKeys;

Include/Library/OcConfigurationLib.h

@@ -271,6 +271,7 @@
   _(BOOLEAN                     , PollAppleHotKeys            ,     , FALSE                       ,     ())                   \
   _(BOOLEAN                     , ShowPicker                  ,     , FALSE                       ,     ())                   \
   _(BOOLEAN                     , UsePicker                   ,     , FALSE                       ,     ())                   \
+  _(UINT32                      , PickerAttributes            ,     , 0                           ,     ())                   \
   _(UINT32                      , TakeoffDelay                ,     , 0                           ,     ())                   \
   _(UINT32                      , Timeout                     ,     , 0                           ,     ())                   \
   _(OC_STRING                   , HibernateMode               ,     , OC_STRING_CONSTR ("None", _, __), OC_DESTR (OC_STRING))

Library/OcBootManagementLib/OcBootManagementLib.c

@@ -76,6 +76,10 @@ OcShowSimpleBootMenu (
   OcConsoleControlSetMode (EfiConsoleControlScreenText);
   gST->ConOut->EnableCursor (gST->ConOut, FALSE);
 
+  if (Context->ConsoleAttributes != 0) {
+    gST->ConOut->SetAttribute (gST->ConOut, Context->ConsoleAttributes & 0x7FU);
+  }
+
   while (TRUE) {
     gST->ConOut->ClearScreen (gST->ConOut);
     gST->ConOut->OutputString (gST->ConOut, L"OpenCore Boot Menu");

Library/OcConfigurationLib/OcConfigurationLib.c

@@ -319,6 +319,7 @@ OC_SCHEMA
 mMiscConfigurationBootSchema[] = {
   OC_SCHEMA_STRING_IN  ("HibernateMode",       OC_GLOBAL_CONFIG, Misc.Boot.HibernateMode),
   OC_SCHEMA_BOOLEAN_IN ("HideSelf",            OC_GLOBAL_CONFIG, Misc.Boot.HideSelf),
+  OC_SCHEMA_INTEGER_IN ("PickerAttributes",    OC_GLOBAL_CONFIG, Misc.Boot.PickerAttributes),
   OC_SCHEMA_BOOLEAN_IN ("PollAppleHotKeys",    OC_GLOBAL_CONFIG, Misc.Boot.PollAppleHotKeys),
   OC_SCHEMA_BOOLEAN_IN ("ShowPicker",          OC_GLOBAL_CONFIG, Misc.Boot.ShowPicker),
   OC_SCHEMA_INTEGER_IN ("TakeoffDelay",        OC_GLOBAL_CONFIG, Misc.Boot.TakeoffDelay),