Fixing Stylus stylesheets to work on the new version

[SlickRCBD]

For many years I've been using the "Thread Starter Highlighter" script for Greasemonkey/Tapermonkey, along with several Stylus Stylesheets. All were broken at the upgrade, does anybody know if there are updated versions of any of these or if there's an easy way to fix them? I don't know how to work with CSS or JavaScript, and thumbing through an intro book I purchased at a library book sale shows me that fixing those is a lot more advanced.
I'm open to alternatives that accomplish the same things.

Automatically show but still highlight the QS tag spoilers:
SB/SV Reveal QS Spoilers

UserStyles.org Archive

USO-Archive is an ad-free, spyware-free mirror of userstyles.org

uso.kkx.one

Automatically expand spoilers:
SB/SV/QQ Show Spoilers

UserStyles.org Archive

USO-Archive is an ad-free, spyware-free mirror of userstyles.org

uso.kkx.one

Reveal but still highlight invisitext:
XenForo Invisitext Handler

UserStyles.org Archive

USO-Archive is an ad-free, spyware-free mirror of userstyles.org

uso.kkx.one

Highlight posts from the thread starter:
SB/SV Thread-Starter Highlighter

SB/SV Thread-Starter Highlighter

This is a userscript which highlights subsequent posts by the thread-starter in the SpaceBattles and Sufficient Velocity forums. It also displays a short information at the top of each page if a post by the thread-starter can be found on the current page.

greasyfork.org

 

[AztecCroc]

Reveal but still highlight invisitext:
XenForo Invisitext Handler

UserStyles.org Archive

USO-Archive is an ad-free, spyware-free mirror of userstyles.org

uso.kkx.one

Click to shrink...

Well you don't need that one XF2 has that built in. If there's invisi-text in a post, a little eye will appear at the top of the post that when clicked will turn all invisi-text into in-line spoilers (ie: THIS)

There is invisi-text here: CLICK THE EYE