Meta / Theme

Change the base color theme of the app.

from h2o_wave import Q, ui, main, app

@app('/demo')async def serve(q: Q):    if not q.client.initialized:        q.page['meta'] = ui.meta_card(box='', theme='neon')        q.page['controls'] = ui.form_card(box='1 1 2 8', items=[            ui.text_xl('Form'),            ui.textbox(name='textbox', label='Textbox'),            ui.toggle(name='toggle', label='Toggle'),            ui.choice_group(name='choice_group', label='Choice group', choices=[                ui.choice(name=x, label=x) for x in ['Egg', 'Bacon', 'Spam']            ]),            ui.checklist(name='checklist', label='Checklist', choices=[                ui.choice(name=x, label=x) for x in ['Egg', 'Bacon', 'Spam']            ]),            ui.dropdown(name='dropdown', label='Dropdown', choices=[                ui.choice(name=x, label=x) for x in ['Egg', 'Bacon', 'Spam']            ]),            ui.slider(name='slider', label='Slider'),            ui.button(name='toggle_theme', label='Toggle Theme', primary=True)        ])        q.client.theme = 'default'        q.client.initialized = True
    meta = q.page['meta']
    if q.args.toggle_theme:        meta.theme = q.client.theme = 'neon' if q.client.theme == 'default' else 'default'
    await q.page.save()