Unable to rename enums

[guusw]

I have an enum like this in C:

enum SHType : uint8_t {
  None,
  Any,
  Enum,
  Bool,
  ...
}

Turns into:

pub const SHType_None: SHType = 0;
pub const SHType_Any: SHType = 1;
pub const SHType_Enum: SHType = 2;
pub const SHType_Bool: SHType = 3;
...
pub type SHType = u8;

Which when used inside match blocks will generate:

warning: constant in pattern `SHType_Float3` should have an upper case name
   --> src\widgets\var_util.rs:194:9
    |
194 |         SHType_Float3 => {
    |         ^^^^^^^^^^^^^ help: convert the identifier to upper case: `SHTYPE_FLOAT3`

I have tried to use ParseCallbacks with enum_variant_name to rename the enum, but it only works on the variant part, not the type (turns into SHType_FLOAT3, instead of SHTYPE_FLOAT3)
I also tried to use item_name in addition which kind of works except it renames the actual type also to SHTYPE, which I want to keep regular, I just want to rename the constants. Anything I'm missing in bindgen that can do this or is it just something that is not possible yet?