fix: allow overriding of the color on cell hover

[anhhao92]

resolves #286

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[codecov]

Codecov Report

Merging #287 (d65e048) into master (10dcce7) will not change coverage.
The diff coverage is n/a.

❗ Current head d65e048 differs from pull request most recent head 5129a38. Consider uploading reports for the commit 5129a38 to get more accurate results

@@           Coverage Diff           @@
##           master     #287   +/-   ##
=======================================
  Coverage   99.52%   99.52%           
=======================================
  Files          45       45           
  Lines        2114     2114           
  Branches      614      614           
=======================================
  Hits         2104     2104           
  Misses          8        8           
  Partials        2        2           

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