This is what I'm trying to make: In the Flutter docs for Text Fields (https://flutter.io/text-input/) it says you can remove the underline by passing null to
android-constraintlayout
quickbase
numactl
dropdownbox
hpcc-ecl
ssha
dokku
dart-shelf
annotation-processor
jgraph
coq
microsoft-dynamics-nav
materialized
winrar
embedded-tomcat-7
toolchain
omniorb
shutdown-hook
sid
restriction
expresso
javascript-proxy
asyncvalue
microtime
nsurlerrordomain
ion-item
jxbrowser
rmysql
range-header
wp-graphql