This mod allows you to customize the pages of the Bestiary with 5 different theme. Those are Poop, Fly, Cave, Spider and Ghost.

Like in Afterbirth+ there's still a little problem with it. The only way to enable, disable or combine the different themes is editing the anm2 file of the mod. This might be changed in the future, but for now we have to work with that.

If you only have Afterbirth+ and still want to change the theme then go here. Repentance and Afterbirth+ use different mod folders and this guide shows you how to do it for Repentance.

For those who are still interested hat's how to change the themes:

First we have to copy the mod folder.

1. Go to the Repentance [mods] - folder. Just follow this path:
> C:\Program Files (x86)\Steam\steamapps\common\The Binding of Isaac Rebirth\mods
2. Copy the [improvedbestiary] - folder
3. Rename the new copy like you want. Just make sure you know what mod that is.
4. From there we only work with the new copy of the mod.

Now we have to open the anm2 - file and edit it.

1. Go to the Animationeditor - tool by following this path:
> C:\Program Files (x86)\Steam\steamapps\common\The Binding of Isaac Rebirth\tools\IsaacAnimationEditor
2. Open the Animation editor by doubleclicking in it. The editor looks like this[imgur.com].
3. Now click on the file tap[imgur.com].
4. Click on [Open]
5. Go again to the Repentance [mods] - folder by following this path:
> C:\Program Files (x86)\Steam\steamapps\common\The Binding of Isaac Rebirth\mods
6. Open the renamed mod.
7. Open the [resources] - folder.
8. Open the [gfx] - folder.
9. Open the [ui] - folder.
10. Open the [main menu] - folder.
11. Now open the bestiarymenu.anm2 with a doublclick. The editor looks like this now[imgur.com]
12. Now click on 'Idle' in the Animation menu[imgur.com].
13. Now you can see in the 'Timelinie menu' the names of the different themes.
14. Now click on the eye symbol to make on theme visible or transparent[imgur.com].
15. After you have choosen the theme click again on the file tap (see step 3.) and click on [Save].
16. Confirm that you would like to override the xml (this animation-) file.
17. Now close the Animation editor and reload the game.

Done!

Thank you so much for continuing to support this mod:)!