Reduce the default app weight by removing the image background on the Login screen

[ThieryMichel]

Replace default unsplash image for Login component by a simple gradient.

Demo login is unchanged.

Preview:

[fzaninotto]

If I'm not mistaken, that's a breaking change: people having defined a custom image for the background will lose it. Can you make the change backwards compatible?

[alanpoulain]

It seems to me it's even worse since the default prop has been removed from ra-ui-materialui. People not having a custom backgroundImage prop will have a blank page.

Also only the demo has been changed, why not using this for the framework?

Nice change btw 🙂

[ThieryMichel]

If I'm not mistaken, that's a breaking change: people having defined a custom image for the background will lose it. Can you make the change backwards compatible?

I just removed the default value for the background image. Only people that specified no backround image will have a white background. Which can be considered a breaking change. I can split the PR.

• One to change the demo login page (no BC)
• One to remove the default value for Login default backgroundImage (BC)

[ThieryMichel]

Well totally changed the pr to only replace the unspalsh default image with a gradient in the Login component.

[fzaninotto]

this needs to be done on the next branch as it's not a bug fix

[fzaninotto]

suggested alternative: 'radial-gradient(circle at 50% 14em, #313264 0%, #00023b 60%, #00023b 100%)'

[fzaninotto]

You should also update the Theming.md documentation:

Using the random URL from unsplash would help people find the same look and feel as before the update.