Solved ISSUE: I cannot upload any themes to vivaldi://settings/themes

[Vivaldiscool]

@DoctorG Yes, desktop.

[DoctorG]

@Vivaldiscool Store the zip file in a folder of your choice (but not on in Vivaldi config folder)
Open Vvialdi Setting → Themes
Hit button "Open theme…"
Select the zip file
Then you can install your theme

[Vivaldiscool]

@DoctorG I did exactly that, but it didn't work.

[DoctorG]

@Vivaldiscool How had you embedded a MP4 ad background? I can not.

[Vivaldiscool]

@DoctorG No idea... I didn't even know that was a thing.

[DoctorG]

@Vivaldiscool But how had you created your theme? I have no idea how you did it.

[Vivaldiscool]

@DoctorG Animation from www.*****.com, and download from there.

[DoctorG]

@Vivaldiscool Themes do only work with static image (PNG, JPEG, WEBP, SVG) or GIF animation as background.

[Vivaldiscool]

@DoctorG Lemme just fix my theme to .gif file then, if that works.

[Vivaldiscool]

@DoctorG I did it from .mp4 to .gif (now a gif file and edited .json/code source) and still not working, I did what you said here.

Now a .gif file.

[DoctorG]

@Vivaldiscool Oh, i can confirm this.

Please report issue to Vivaldi bug tracker. Once that is done, share the bug number (beginning with VB-) you got by bug report mail. Thanks for helping us making Vivaldi better. Do send them the zip file as attachment!

[Vivaldiscool]

@DoctorG Okay, lemme just do that.

[Vivaldiscool]

@DoctorG

Is this meant to happen?

WEBSITE (AFTER CLICKING REPORT):

DEVELOPER CONSOLE (inspect):

Error Code: 413 (Request entity Too Large)

[Vivaldiscool]

@DoctorG

With the issue, I keep on trying to-do it, and nothing happening except the error.

[DoctorG]

@Vivaldiscool Could be the embedded GIF is to large in data amount. I do not know.

Then upload the zip file to a file hoster and send the link to Vivaldi bug tracker.

[Hadden89]

Btw, if the zip is bigger than 8mb couldn't be a bug but more a feature request.

[Vivaldiscool]

@Hadden89 Amazing, 21.6 MB the file is, somehow.

I do not know how to change the size of the file / .zip file.

[Vivaldiscool]

@DoctorG, As you said:

Could be the embedded GIF is to large in data amount.

How do you find out if it is or not?

[DoctorG]

@Vivaldiscool "Request entity Too Large" ist the proxy server message for such issues.

[Hadden89]

@Vivaldiscool said in ISSUE: I cannot upload any themes to vivaldi://settings/themes:

I do not know how to change the size of the file / .zip file.

Well, clearly your zip has too much big resources to be uploaded.
Review your theme. Likely you have very big icons (>64/128) or not well optimized animations (gifs/webp).