2023-11-16 Thanks to Endagorion and Wisteria Fall for feedback on the puzzle(s) and implementation! 2023-11-17 Thanks to Eli Doris (TwoHoleStraw) for suggesting default arrowhead aux marks and that more line colours be used, and Kays Ishaq (Kays) and PinkHoodie for reporting a bug, now fixed. 2023-11-18 Bouba and Kiki variants added with two example puzzles, (suggested by Martin Ender (Menderbug) and PinkHoodie). Thanks Seren, boboquack and Lennard Sprong (X_Sheep) for help clarifying the rule description. 2023-11-18 Palette adjustments (lighter background, thicker frame, green aux shade by default) after Endagorion and Yannick Yao (yyao) suggested style changes were needed for increased contrast (especially with background). 2023-11-21 Corrected a non-uniqueness in the kiki variant puzzle, found by Endagorion - thank you! 2023-11-30 A puzzle using the directions variant was added 2023-12-27Endagorion's original 2023 vertigo set, comprising 13 puzzles of all levels, was added - thank you! 2024-01-10 Variant ripple-loop can now be combined with all crossing genres, including Vertigo (thanks to PinkHoodie for sending a test case!) 2024-01-29 Fixed a recent regression reported by Wisteria Fall (cause: template filename typo) 2024-02-25Eli Doris (TwoHoleStraw)modernised the rule panels of Vertigo - thank you! 2024-05-06 A rencent regression (cause: miscapitalised variable) causing some genres to load was corrected - thank Endagorion for reporting. 2024-05-18puzzlettersPinkHoodie sent 1 puzzle using variant pipe! 2024-05-24PinkHoodie included this genre in a puzzle series themed after the 26 letters of the alphabet! 2024-08-22 The directions variant has been fixed (cause: incorrect template shadowing blocked some arrows) (PinkHoodie) 2024-09-01puzzlettersPinkHoodie sent 2 classics - thank you!