Use less for css

gulpfile.js

@@ -0,0 +1,37 @@
+const gulp = require('gulp');
+const less = require('gulp-less');
+
+function onError(err) {
+  util.log(util.colors.red.bold('[ERROR LESS]:'),util.colors.bgRed(err.message));
+  this.emit('end');
+};
+
+/* ----------------------------------------- */
+/*  Compile LESS
+/* ----------------------------------------- */
+function compileLESS() {
+  return gulp.src("less/foundryvtt-reve-de-dragon.less")
+      .pipe(less()).on('error',console.log.bind(console))
+      .pipe(gulp.dest("./css"))
+}
+const css = gulp.series(compileLESS);
+
+/* ----------------------------------------- */
+/*  Watch Updates
+/* ----------------------------------------- */
+const SIMPLE_LESS = ["less/*.less"];
+
+function watchUpdates() {
+  gulp.watch(SIMPLE_LESS, css);
+}
+
+/* ----------------------------------------- */
+/*  Export Tasks
+/* ----------------------------------------- */
+
+exports.default = gulp.series(
+    gulp.parallel(css),
+    watchUpdates
+);
+exports.css = css;
+exports.watchUpdates = watchUpdates;