Change the look of a widget (Input reference set selector)

Hello mendix community,   I have a questoin regarding the widgets. I do not like the look of the input reference set selector – particularly the button on the right with the “arrow” icon. Is there a way to change it e.g. to a “+” sign? The css files have not helped me so far.  I looked up how to create custom widgets. But i’d much rather just change the existing one for the entire application.   Thank you!   BR Markus
1 answers

For a plus sign, you could create a CSS rule like this:

.mx-referenceselector-select-button > span.glyphicon-share-alt:before {
  content: "\f067"

Put it for example in your projectfolder/theme/style/web/sass/app/_buttons.scss and recompile your css.