update

.obsidian/plugins/obsidian-asciimath/styles.css

@@ -0,0 +1,13 @@
+/*
+
+This CSS file will be included with your plugin, and
+available in the app when your plugin is enabled.
+
+If your plugin does not need CSS, delete this file.
+
+*/
+.__asciimath_settings_custom-symbols {
+  width: 300px;
+  height: 100px;
+  font-family: var(--font-monospace), 'Courier New', Courier, monospace;
+}