09172: zaviga: The background color of the title screen is incorrect

ID	Category [?]	Severity [?]	Reproducibility	Date Submitted	Last Update
09172	Color/Palette	Minor	Always	May 14, 2025, 01:43	9 days ago

Tester	Fujix	View Status	Public	Platform	MAME (Official Binary)
Assigned To		Resolution	Open	OS	Windows 10/11 (64-bit)
Status [?]	Confirmed			Driver	dataeast/bwing.cpp
Version	0.277	Fixed in Version		Build	64-bit
		Fixed in Git Commit		Github Pull Request #

Summary	09172: zaviga: The background color of the title screen is incorrect
Description	The background color of the title screen should be blue. And in many places, blue pixels are black.
Steps To Reproduce
Additional Information
Github Commit

Flags	Verified with Original
Regression Version
Affected Sets / Systems	zaviga

Attached Files

No.23282 Robbbert Moderator May 14, 2025, 06:35	Confirmed. Also, the lakes are blue in the video, but purple in MAME.
No.23283 hap Developer May 14, 2025, 10:20	Titlescreen background color is fixed here: https://github.com/mamedev/mame/commit/dabc8a9707d266046abd9401a638841af7d18849 I also corrected reading from paletteram, but I don't think the games ever read paletteram. Schematics are hard to read, from there it doesn't look like there's any difference between the B color output and G/R.
No.23284 Robbbert Moderator May 14, 2025, 11:19 edited on: May 14, 2025, 13:48	Getting purple instead of black, but isn't it supposed to be blue? Lakes are still purple.
No.23285 hap Developer May 14, 2025, 11:48	Yeah, I don't know why the blue is stronger on the PCB video. Like I said, I see no difference between r/g/b outputs in the schematics.
No.23340 Kale Developer 9 days ago	gamma monitor shenanigans?