[jcn363]

Originally Posted by Kiwisaurus

Nope.

How do I apply it?

Sorry...I am a novice at these stuff.

I read the instructions but don't understand anything.

So what exactly do I do?

EDIT: Why is it called "Nickel"?

1.- Download patches.
2.- Unzip kobopatch_4.10.11655.zip where you want.
3.- You can enable the patches in the yaml files inside the src folder, or you can use the overrides into kobopatch.yaml file to keep your options separate:

overrides:
  src/nickel.yaml:
    Show all games: yes

You can add all the patches you want (preferably all) into the patch, and then activate as you need.
Here is an example:

Spoiler:

## Works with kobopatch v0.7 or higher. 
## You can update kobopatch by downloading the latest release from https://github.com/geek1011/kobopatch/releases. 
version: 4.10.11655 
in: src/kobo-update-4.10.11655.zip 
out: out/KoboRoot.tgz 
log: out/log.txt 
 
patchFormat: kobopatch 
 
patches: 
#  src/nickel-PROGRESIVE.yaml: usr/local/Kobo/nickel 
#  src/nickel-PROGRESIVE_Nova.yaml: usr/local/Kobo/nickel 
  src/nickel-PROGRESIVE_NovaTO.yaml: usr/local/Kobo/nickel 
#  src/nickel.yaml: usr/local/Kobo/nickel 
  src/sickel.yaml: usr/local/Kobo/sickel 
  src/libadobe.so.yaml: usr/local/Kobo/libadobe.so 
  src/libnickel-PROGRESIVE.yaml: usr/local/Kobo/libnickel.so.1.0.0 
  src/libnickel.so.1.0.0.yaml: usr/local/Kobo/libnickel.so.1.0.0 
  src/librmsdk.so.1.0.0.yaml: usr/local/Kobo/librmsdk.so.1.0.0 
 
## You can put lines in the following section to override the enabled state of patches. 
## The indentation matters! Each override should be indented by 4 spaces. Add to the 
## section below. This section can be copy and pasted into newer patch versions to 
## keep your selections. 
## 
## Example of how it should look: 
## overrides: 
##   src/nickel.patch: 
##     Custom synopsis/details line spacing: yes 
##     Whatever the patch is called: no 
##   src/libadobe.so.patch: 
##     You get the idea: yes 
overrides: 
  src/nickel-PROGRESIVE.yaml: 
    PROGRESIVE: yes 
  src/nickel-PROGRESIVE_Nova.yaml: 
    PROGRESIVE: yes 
  src/nickel-PROGRESIVE_NovaTO.yaml: 
    PROGRESIVE: yes 
  src/nickel.yaml: 
    Show all games: no 
# PATCH GROUP - DON'T EANBLE MORE THAN 1 
    Disable reading footer: no 
    Custom reading footer style: yes 
# END GROUP 
    Custom synopsis/font size: yes 
    Custom synopsis/details line spacing: yes 
# PATCH GROUP - DON'T EANBLE MORE THAN 1 
    Custom menubar - reduce height by 33%: yes 
    Custom menubar - reduce height by 50%: no 
# END GROUP 
    Dictionary pop-up frame size increase: yes 
    Fix reading stats/author name cut off when series is showing: no 
    Increase the cover size in library: yes 
    Increase the view details container size: yes 
    Increase size of kepub chapter progress chart: yes 
    Custom font to collection and author titles: no 
    Increase headlines font: no 
    New home screen subtitle custom font: no 
# PATCH GROUP - DON'T EANBLE MORE THAN 1 
    Remove footer (row3) and increase cover size on new home screen: yes 
    Remove footer (row3) on new home screen: no 
    New home screen increasing cover size: no 
# END GROUP 
  src/sickel.yaml: 
# PATCH GROUP - DON'T EANBLE MORE THAN 1 
    sickel reboot timeout (20 sec): no 
    sickel reboot timeout (30 sec): yes 
# END GROUP 
  src/libadobe.so.yaml: 
    Remove PDF map widget shown during panning: yes 
  src/libnickel-PROGRESIVE.yaml: 
    Dictionary, remove long winded closest match notification: yes 
    unclassified (PROGRESIVE): yes 
    MY ePub/Kepub fixed font sharpness: yes 
    Wikipedia Search language: yes 
    MY KePub stylesheet additions: yes 
    My Dictionary text font-family/font-size/line-height: yes 
  src/libnickel.so.1.0.0.yaml: 
    Rename new home screen footer: no 
# PATCH GROUP - DON'T EANBLE MORE THAN 1 
    My 10 line spacing values: no 
    My 24 line spacing values: yes 
# END GROUP 
    Custom left & right margins: yes 
    Custom font sizes: yes 
    Freedom to advanced fonts control: yes 
# PATCH GROUP - DON'T EANBLE MORE THAN 1 
    ePub fixed/adjustable top/bottom margins: yes 
    ePub fixed top/bottom margins: no 
    ePub disable built-in body padding-bottom: no 
# END GROUP 
    Custom kepub default margins: yes 
    Block WiFi firmware upgrade: yes 
    Custom footer (page number text): yes 
    Custom Sleep/Power-off timeouts: no 
    Set KePub hyphenation: yes 
    Fix three KePub fullScreenReading bugs: yes 
    Force user line spacing in KePubs: yes 
    Force user line spacing in ePubs (part 1 of 2): yes # PART 2 in librmsdk.so.1.0.0.yaml 
# PATCH GROUP - DON'T EANBLE MORE THAN 1 
    Un-force font-family override p tags (std epubs): no 
    Force user font-family in ePubs (Part 1 of 2): yes # PART 2 in librmsdk.so.1.0.0.yaml 
# END GROUP 
    ePub constant font sharpness: no 
    KePub constant font sharpness: no 
    Un-Force user text-align in div,p tags in KePubs: yes 
    Always display chapter name on navigation menu: yes 
    Un-Force user font-family in KePubs: yes 
    Un-force link decoration in KePubs: yes 
    KePub stylesheet additions: no 
    Change dicthtml strings to micthtml: no 
    Allow searches on Extra dictionaries: yes 
    Ignore .otf fonts: no 
    Brightness fine control: yes 
    Clock display duration: yes 
# PATCH GROUP - DON'T EANBLE MORE THAN 1 
    Keyboard template (Mini/Touch/Glo/Aura): no 
    Keyboard template (AuraHD/H2O): no 
    Keyboard template (GloHD/ClaraHD/AuraOne/H2O2): no 
    Cyrillic keyboard (Mini/Touch/Glo/Aura/AuraHD/H2O): no 
    Cyrillic Keyboard (GloHD/ClaraHD/AuraOne/H2O2): no 
    Arabic keyboard (Mini/Touch/Glo/Aura/AuraHD/H2O): no 
    Hebrew keyboard (Mini/Touch/Glo/Aura): no 
    Hebrew keyboard (AuraHD/H2O): no 
    Hebrew keyboard (GloHD/ClaraHD/AuraOne/H2O2): no 
    Greek Keyboard (GloHD/ClaraHD/AuraOne/H2O2): no 
# END GROUP 
    Dictionary text font-family/font-size/line-height - beta: no 
    Dictionary, remove long winded closest match notification: no 
    Wikipedia Search language: no 
  src/librmsdk.so.1.0.0.yaml: 
    Disable orphans/widows avoidance: yes 
    Default ePub monospace font (Courier): yes 
    Default ePub serif font (Amasis): no 
    Default ePub sans-serif font (Gill Sans): no 
    Default ePub symbol font (Symbol): no 
    Force user line spacing in ePubs (Part 2 of 2): yes # PART 1 in libnickel.so.1.0.0.yaml 
    Force user font-family in ePubs (Part 2 of 2): yes # PART 1 in libnickel.so.1.0.0.yaml 
    Ignore ePub book Adobe XPGT stylesheet (page-template.xpgt): yes 
    Ignore ePub book CSS and Adobe XPGT stylesheets: no 
    Ignore ePub TOC navpoints: no 
 
## TRANSLATIONS ## 
# Optional, use only if lrelease is not in PATH and if translations are needed 
# lrelease: /path/to/lrelease 
 
# Uncomment the following to add translations (replace lc with the language code) 
# translations: 
#   src/whatever.ts: usr/local/Kobo/translations/trans_lc.qm 
translations: 
  src/translations/trans_es.ts: usr/local/Kobo/translations/trans_es.qm 
## ADDITIONAL FILES ## 
# Uncomment the following to add additional files to the tgz (like init scripts or hyphen dicts) 
# The files will be root-owned, and world readable, writable, and executable (0777) 
# files: 
#   src/whatever.txt: usr/local/Kobo/whatever.txt 
files: 
  src/hyphenDicts/hyph_de.dic: usr/local/Kobo/hyphenDicts/hyph_de.dic 
  src/hyphenDicts/hyph_es.dic: usr/local/Kobo/hyphenDicts/hyph_es.dic 
  src/hyphenDicts/hyph_en_US.dic: usr/local/Kobo/hyphenDicts/hyph_en_US.dic 
  src/hyphenDicts/hyph_fr.dic: usr/local/Kobo/hyphenDicts/hyph_fr.dic 
  src/hyphenDicts/hyph_la.dic: usr/local/Kobo/hyphenDicts/hyph_la.dic 
  src/otros/hosts-363: etc/hosts 
#  src/jcn-t.css: mnt/onboard/.kobo/kepub/kepub-book.css 
  src/otros/jcn-t.css: mnt/onboard/kobo_extra.css 
#  src/translations/trans_es.qm: usr/local/Kobo/translations/trans_es.qm 
  src/fonts/IBMPlexMono-Regular.ttf: mnt/onboard/fonts/IBMPlexMono-Regular.ttf 
  src/fonts/IBMPlexMono-Italic.ttf: mnt/onboard/fonts/IBMPlexMono-Italic.ttf 
  src/fonts/IBMPlexMono-Bold.ttf: mnt/onboard/fonts/IBMPlexMono-Bold.ttf 
  src/fonts/IBMPlexMono-BoldItalic.ttf: mnt/onboard/fonts/IBMPlexMono-BoldItalic.ttf 
  src/fonts/IBMPlexSans-Regular.ttf: mnt/onboard/fonts/IBMPlexSans-Regular.ttf 
  src/fonts/IBMPlexSans-Italic.ttf: mnt/onboard/fonts/IBMPlexSans-Italic.ttf 
  src/fonts/IBMPlexSans-Bold.ttf: mnt/onboard/fonts/IBMPlexSans-Bold.ttf 
  src/fonts/IBMPlexSans-BoldItalic.ttf: mnt/onboard/fonts/IBMPlexSans-BoldItalic.ttf 
  src/fonts/IBMPlexSerif-Regular.ttf: mnt/onboard/fonts/IBMPlexSerif-Regular.ttf 
  src/fonts/IBMPlexSerif-Italic.ttf: mnt/onboard/fonts/IBMPlexSerif-Italic.ttf 
  src/fonts/IBMPlexSerif-Bold.ttf: mnt/onboard/fonts/IBMPlexSerif-Bold.ttf 
  src/fonts/IBMPlexSerif-BoldItalic.ttf: mnt/onboard/fonts/IBMPlexSerif-BoldItalic.ttf 
#  src/fonts/IBMPlexMono-Regular.ttf: mnt/onboard/adds./koreader/fonts/ibm/IBMPlexMono-Regular.ttf

WARNING: If your OS is not an Unix derivative you must edit with an appropriate editor (Geany, Notepad++, etc.).
4.- The patches (yaml extension files) are into the src folder (i.e. to see/edit a patch for nickel you must open kobopatch_4.10.11655/src/nickel.yaml file).
IMPORTANT: Read carefully all instructions and change only the part between quotes ("...") after Replace:.
Example:
The following change a 29px font-size to 26px.

  - ReplaceString: {Offset: 357, Find: "font-size:29px", Replace: "font-size:26px"} # Replacement caption font size value for AuraHD/H2O:

5.- Save (if you edit) and run kobopatch.sh (Linux), or kobopatch.bat (Windows).
If there are no issues, a KoboRoot.tgz file will be created into out folder, that you will have to copy into .kobo folder of your device.
6.- Eject, disconnect the USB and the device reboots to install the patches.

Good luck.

EDIT: The name? Who knows?