VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK

Undocumented in source but is binding to an external library. You might be able to learn more by searching the web for its name.
@nogc nothrow extern (System)
enum VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK = VkFormat.VK_FORMAT_ETC2_R8G8B8_UNORM_BLOCK;

Meta