Adds support to opaque property in BeamPage

[ggirotto]

Open to discussion

[codecov]

Codecov Report

Merging #446 (d692cfb) into master (9ac04d9) will increase coverage by 0.02%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master     #446      +/-   ##
==========================================
+ Coverage   96.22%   96.24%   +0.02%     
==========================================
  Files          13       13              
  Lines         741      745       +4     
==========================================
+ Hits          713      717       +4     
  Misses         28       28              

Impacted Files	Coverage Δ
package/lib/src/beam_page.dart	97.46% <100.00%> (+0.13%)	⬆️

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[slovnicki]

Ah, nice 👍
Thanks for the PR @ggirotto 💙

[ggirotto]

Thanks for the merge. We have a specific use-case that will benefit a lot from this property.