Image size too large

[Athwale]

Hello,
I have managed to successfully build twrp for android 8.1 but the recovery image is too large.
What can I do to reduce the size?
I know there are build flags and I am using these:
TW_EXTRA_LANGUAGES := false
TW_DEFAULT_LANGUAGE := en-US
TW_NO_USB_STORAGE := true
TW_EXCLUDE_MTP := true
TW_NO_EXFAT := true
TW_INCLUDE_FB2PNG := false

But I can not find a full list of everything that is available.
What else can I use either flags or something else to reduce the size?
Thanks.

[ThatOSDeveloper]

I got this error before DO NOT ATTEMPT TO RESIZE YOUR PARTITONS I have a dead phone because of that, this is all I know