You can have two copies of your health number, make one of them completely black and offset it a little to make it into a bigger dropshadow. You can't make the actual outline on text bigger though.

They probably missed something from the menu files that causes it, try deleting mainmenu.res and gamemenu.res and see if that changes things (and any other menu files there are).

Hud I've downloaded (Optivex hud) doesn't allow me to zoom in/move the character about in the loadout selection screen, normally using left click/right click and middle mouse button lets me move the character around e.g soldier.
It works as normal with other huds, what file do I need to fiddle with since it's probably been disabled by the hud maker somewhere.

can you make the health bar go sideways instead of downwards?

https://prnt.sc/ldpw2vamlNJC

how do i edit the target id of the current medic healing me?
i'd like to remove the name of the healer and the name of the current medi gun
id also like to increase the size of the healers health and uber percentage

These are in spectatorguihealth.res and targetid.res respectively in the resource/ui folder. You can increase the size of the health number by changing the font of PlayerStatusHealthValue (and PlayerStatusHealthValueShadow) to a bigger one. Uber percentage is called TargetDataLabel in targetid.res.

You can either change the font of TargetDataLabel to be a numbers only font (like in Grape-M0rehud) or you can edit chat_english.txt in your hud's resource folder, look for "TF_playerid_mediccharge_wpn" and remove the "(%s2)" part. If your hud doesn't have that file you can just create it yourself and then paste this into it:

"lang"
{
	"Language"	"English"
	"Tokens"
	{
		"TF_playerid_mediccharge_wpn"	"Über: %s1%"
	}
}

works, thank you! However, the uber percentage value gets cut off at the top a little bit by changing the font @targetdatalabel. is there a workaround?

Play around with the ypos and tall values and see if that works

I'm trying to install HelveticaNeueLT-BoldExt on Hypnotize's new m0rehud but I think I missed a step because all I get is this bugged font even after following the github's instructions. Does anyone know what happened?

https://imgur.com/a/oCkRiAq

The wiki guide was actually missing a step, so that's my bad, it probably slipped through when I imported the new pages.
I followed the instructions step by step myself just to check if everything is correct now and it seems to be working, try following the second step and let me know if it works then.
If it still doesn't work then there might be something wrong with your font installation I guess, the console might also throw an error on game lanch if that's the case.

Sorry for not responding earlier but yes it worked, thank you