[ps67]

Originally Posted by Ansl

Patch log, sorry it's long, but I thought it would be more useful to be reminded of everything there is rather than just the things I have enabled, in case there really is a conflict somewhere.

Patching ./usr/local/Kobo/libnickel.so.1.0.0
  SKIP  `Allow USB storage even when device locked`
  APPLY `Allow rotation on all devices`
  SKIP  `Allow showing info panel on random screensaver`
  SKIP  `Always show confirmation dialog before upgrading`
  APPLY `Block WiFi firmware upgrade`
  SKIP  `Both page turn buttons go next`
  SKIP  `Both page turn sides go next`
  SKIP  `Bulgarian Phonetic Keyboard (GloHD/ClaraHD/AuraOne/H2O2/Forma/Libra)`
  SKIP  `Change Browse Kobo home screen link target - Activity`
  SKIP  `Change Wikipedia search language`
  SKIP  `Custom Sleep/Power-off timeouts`
  APPLY `Custom font sizes`
  SKIP  `Custom header/footer page number text`
  SKIP  `Custom kepub default margins`
  SKIP  `Custom left & right margins`
  APPLY `Custom navigation menu page number text`
  SKIP  `Customize ComfortLight settings`
  SKIP  `Cyrillic Keyboard (GloHD/ClaraHD/AuraOne/H2O2)`
  SKIP  `DeveloperSettings - AutoUsbGadget`
  SKIP  `Dictionary text font-family/font-size/line-height`
  SKIP  `Disable all tutorial dialogs`
  SKIP  `Don't grab exclusive access to event0`
  SKIP  `Don't uppercase header/footer text`
  APPLY `Don't uppercase header/footer text and change page number text`
  SKIP  `FeatureSettings - BookSpecificStats`
  SKIP  `FeatureSettings - ExportHighlights`
  SKIP  `FeatureSettings - FullScreenBrowser`
  SKIP  `FeatureSettings - MyWords`
  SKIP  `FeatureSettings - ShowFacebookShare`
  APPLY `Force user font-family in ePubs (Part 1 of 2)`
  APPLY `Force user line spacing in KePubs`
  APPLY `Force user line spacing in ePubs (part 1 of 2)`
  SKIP  `Greek Keyboard (GloHD/ClaraHD/AuraOne/H2O2)`
  SKIP  `Hide browser from beta features`
  SKIP  `Increase page navigation history`
  SKIP  `KePub stylesheet additions - text justify`
  SKIP  `KePub stylesheet additions - word-spacing`
  APPLY `Larger Sleep/Power-off timeouts`
  SKIP  `My 10 line spacing values`
  APPLY `My 24 line spacing values`
  SKIP  `Never show Kobo Plus, wishlist, and points SmartLinks`
  SKIP  `Only show Pocket SmartLink`
  SKIP  `Only show stats SmartLink`
  SKIP  `PowerSettings - UnlockEnabled`
  APPLY `Remove beta features not supported text`
  SKIP  `Remove line from bottom tab bar`
  APPLY `Remove recommendations (row1col2) from home screen`
  SKIP  `Remove title from reading header/footer`
  APPLY `Rename new home screen footer`
  APPLY `Replace adobe page numbers toggle with invert screen`
  APPLY `Set KePub hyphenation`
  SKIP  `Set visible SmartLink`
  SKIP  `Shorten dictionary entry not found message`
  SKIP  `Swap reading header/footer`
  APPLY `Un-Force user font-family in KePubs`
  SKIP  `Un-Force user text-align in div,p tags in KePubs`
  SKIP  `Un-force font-family override p tags (std epubs)`
  APPLY `Un-force link decoration in KePubs`
  APPLY `Unify font sizes`
  SKIP  `ePub constant font sharpness`
  SKIP  `ePub disable built-in body padding-bottom`
  SKIP  `ePub fixed top/bottom margins`

Patching ./usr/local/Kobo/nickel
  SKIP  `Change TOC level indentation`
  SKIP  `Custom collection/author header title font`
  APPLY `Custom header/footer captions`
  SKIP  `Custom page navigation scrubber`
  APPLY `Custom synopsis details line spacing`
  SKIP  `Custom synopsis font size`
  APPLY `Customise Header back button`
  SKIP  `Dictionary pop-up - increase available text area`
  SKIP  `Increase Book Details synopsis area`
  SKIP  `Increase headlines font`
  SKIP  `Increase home screen cover size`
  APPLY `Increase library cover size`
  SKIP  `Increase size of kepub chapter progress chart`
  SKIP  `New home screen subtitle custom font`
  SKIP  `Reduce new header/footer height`
  SKIP  `Reduce top/bottom page spacer`
  APPLY `Remove footer (row3) and increase cover size on new home screen`
  SKIP  `Remove footer (row3) on new home screen`
  SKIP  `Remove forgot pin button from lock screen`
  SKIP  `Series list increase cover thumbnails`
  APPLY `Show all games`

Patching ./usr/local/Kobo/libadobe.so
  SKIP  `Remove PDF map widget shown during panning`

Patching ./usr/local/Kobo/librmsdk.so.1.0.0
  SKIP  `Default ePub monospace font`
  APPLY `Default ePub sans-serif font (Gill Sans)`
  SKIP  `Default ePub serif font (Amasis)`
  SKIP  `Default ePub symbol font (Symbol)`
  APPLY `Disable orphans/widows avoidance`
  APPLY `Force user font-family in ePubs (Part 2 of 2)`
  APPLY `Force user line spacing in ePubs (Part 2 of 2)`
  SKIP  `Ignore ePub TOC navpoints`
  SKIP  `Ignore ePub book Adobe XPGT stylesheet (page-template.xpgt)`
  SKIP  `Ignore ePub book CSS and Adobe XPGT stylesheets`

and the relevant section of the config file

[Reading]
annotationsViewStyle=notebook
bookProgressType=2
fullScreenReading=true
numPartialUpdatePageTurns=1
pageTurnGesture=0
pageTurningOption=default
readingAdobeShowPageNumbers=false
readingRightMargin=5
swipeBrightness=true
webkitTextRendering=geometricPrecision

Also of note: Apparently adding text-rendering: optimizelegibility to the book's stylesheet does work as I am used to, which I suppose is a workable solution. It would just be nicer for it to be universally applied.

What happens if You set the patch "Remove beta features not supported text" to no?