executable permission in production 2.3.6 distribution

[McDiggy69]

I downloaded the latest Leantime production distribution (Leantime-v2.3.6.zip). I noticed that there are several files that have the execute permission; many are image files. I suspect most, if not all, files that have execute set should not have that permission. Are there ANY files in the distribution that must have the execute permission set? If yes, what are they?

Here are the files with the execute permission set:
[-rwxr-xr-x] ./bin/leantime
[-rwxr-xr-x] ./public/css/libs/jstree/32px.png
[-rwxr-xr-x] ./public/css/libs/jstree/40px.png
[-rwxr-xr-x] ./public/css/libs/jstree/style.css
[-rwxr-xr-x] ./public/css/libs/jstree/style.min.css
[-rwxr-xr-x] ./public/css/libs/jstree/throbber.gif
[-rwxr-xr-x] ./public/images/leantime-no-access.jpg
[-rwxr-xr-x] ./vendor/aws/aws-crt-php/format-check.sh
[-rwxr-xr-x] ./vendor/aws/aws-crt-php/gen_stub.php
[-rwxr-xr-x] ./vendor/aws/aws-crt-php/prepare_package_xml.sh
[-rwxr-xr-x] ./vendor/aws/aws-crt-php/prepare_release.sh
[-rwxr-xr-x] ./vendor/aws/aws-crt-php/run_tests
[-rwxr-xr-x] ./vendor/bin/html-to-markdown
[-rwxr-xr-x] ./vendor/bin/jp.php
[-rwxr-xr-x] ./vendor/bin/yaml-lint
[-rwxr-xr-x] ./vendor/htmlawed/htmlawed/htmLawed.php
[-rwxr-xr-x] ./vendor/htmlawed/htmlawed/htmLawed_README.txt
[-rwxr-xr-x] ./vendor/htmlawed/htmlawed/htmLawed_TESTCASE.txt
[-rwxr-xr-x] ./vendor/intervention/image/src/Intervention/Image/ImageServiceProviderLaravel4.php
[-rwxr-xr-x] ./vendor/league/html-to-markdown/bin/html-to-markdown
[-rwxr-xr-x] ./vendor/mtdowling/jmespath.php/bin/jp.php
[-rwxr-xr-x] ./vendor/mtdowling/jmespath.php/bin/perf.php
[-rwxr-xr-x] ./vendor/overtrue/pinyin/LICENSE
[-rwxr-xr-x] ./vendor/overtrue/pinyin/README.md
[-rwxr-xr-x] ./vendor/paragonie/random_compat/build-phar.sh
[-rwxr-xr-x] ./vendor/robthree/twofactorauth/lib/Providers/Qr/EndroidQrCodeProvider.php
[-rwxr-xr-x] ./vendor/robthree/twofactorauth/lib/Providers/Qr/EndroidQrCodeWithLogoProvider.php
[-rwxr-xr-x] ./vendor/symfony/yaml/Resources/bin/yaml-lint

I would like to remove the execute permission wherever possible. Clarification on this matter is greatly appreciated.