[XSG] input needs to be trimmed

[StephaneDelcroix]

Description

error MAUIG1010: Cannot convert "LightGreen " into "Microsoft.Maui.Graphics.Color".

Steps to Reproduce

No response

Link to public reproduction project repository

No response

Version with bug

10.0.0-rc.2

Is this a regression from previous behavior?

No, this is something new, Not sure, did not test other versions

Last version that worked well

Unknown/Other

Affected platforms

I was not able test on other platforms

Affected platform versions

No response

Did you find any workaround?

No response

Relevant log output