--- a
+++ b/doc/_static/style.css
@@ -0,0 +1,415 @@
+:root {
+
+    --pst-font-size-base: 16px;
+    --pst-font-size-milli: 13px;
+    --pst-font-family-base: 'Source Sans Pro', var(--pst-font-family-base-system);
+    --pst-font-family-heading: var(--pst-font-family-base);
+    --pst-font-family-monospace: 'Source Code Pro', var(--pst-font-family-monospace-system);
+    /* colors that aren't responsive to light/dark mode */
+    --mne-color-discord: #5865F2;
+    /* font weight */
+    --mne-font-weight-semibold: 600;
+}
+
+
+html[data-theme="light"] {
+    /* pydata-sphinx-theme overrides */
+    /* ↓↓↓ use default "info" colors for "primary" */
+    --pst-color-primary: #276be9;
+    --pst-color-primary-bg: #dce7fc;
+    /* ↓↓↓ use default "primary" colors for "info" */
+    --pst-color-info: var(--pst-teal-500);
+    --pst-color-info-bg: var(--pst-teal-200);
+    /* ↓↓↓ use "warning" colors for "secondary" */
+    --pst-color-secondary: var(--pst-color-warning);
+    --pst-color-secondary-bg: var(--pst-color-warning-bg);
+    /* ↓↓↓ make sure new primary (link) color propogates to links on code */
+    --pst-color-inline-code-links: var(--pst-color-link);
+    /* ↓↓↓ make sure new secondary (hover) color propogates to hovering on table rows */
+    --pst-color-table-row-hover-bg: var(--pst-color-secondary-bg);
+    /* topbar logo links */
+    --mne-color-github: #000;
+    --mne-color-discourse: #d0232b;
+    --mne-color-mastodon: #2F0C7A;
+    /* code block copy button */
+    --copybtn-opacity: 0.75;
+    /* card header bg color */
+    --mne-color-card-header: rgba(0, 0, 0, 0.05);
+    /* sphinx-gallery overrides */
+    --sg-download-a-background-color: var(--pst-color-primary);
+    --sg-download-a-background-image: unset;
+    --sg-download-a-border-color: var(--pst-color-border);
+    --sg-download-a-color: var(--sd-color-primary-text);
+    --sg-download-a-hover-background-color: var(--pst-color-primary-highlight);
+    --sg-download-a-hover-box-shadow-1: none;
+    --sg-download-a-hover-box-shadow-2: none;
+}
+html[data-theme="dark"] {
+    /* pydata-sphinx-theme overrides */
+    /* ↓↓↓ use default "info" colors for "primary" */
+    --pst-color-primary: #79a3f2;
+    --pst-color-primary-bg: #06245d;
+    /* ↓↓↓ use default "primary" colors for "info" */
+    --pst-color-info: var(--pst-teal-400);
+    --pst-color-info-bg: var(--pst-teal-800);
+    /* ↓↓↓ use "warning" colors for "secondary" */
+    --pst-color-secondary: var(--pst-color-warning);
+    --pst-color-secondary-bg: var(--pst-color-warning-bg);
+    /* ↓↓↓ make sure new primary (link) color propogates to links on code */
+    --pst-color-inline-code-links: var(--pst-color-link);
+    /* ↓↓↓ make sure new secondary (hover) color propogates to hovering on table rows */
+    --pst-color-table-row-hover-bg: var(--pst-color-secondary-bg);
+    /* topbar logo links */
+    --mne-color-github: rgb(240, 246, 252);  /* from their logo SVG */
+    --mne-color-discourse: #FFF9AE;  /* from their logo SVG */
+    --mne-color-mastodon: #858AFA;  /* www.joinmastodon.org/en/branding */
+    /* code block copy button */
+    --copybtn-opacity: 0.25;
+    /* card header bg color */
+    --mne-color-card-header: rgba(255, 255, 255, 0.2);
+    /* sphinx-gallery overrides */
+    --sg-download-a-background-color: var(--pst-color-primary);
+    --sg-download-a-background-image: unset;
+    --sg-download-a-border-color: var(--pst-color-border);
+    --sg-download-a-color: var(--sd-color-primary-text);
+    --sg-download-a-hover-background-color: var(--pst-color-primary-highlight);
+    --sg-download-a-hover-box-shadow-1: none;
+    --sg-download-a-hover-box-shadow-2: none;
+}
+
+/* ************************************************************ Sphinx fixes */
+
+/* API docs parameter lists */
+dl.field-list {
+    grid-template-columns: auto 1fr;
+}
+
+/* make HTML'd pandas dataframes scrollable */
+table.dataframe {
+    display: block;
+    overflow: auto;
+}
+
+/* Long API titles need to wrap for mobile */
+div[id^="mne-"] h1,
+div[id^="examples-using-"] h2 {
+    word-break: break-word;
+}
+
+/* *********************************************** pydata-sphinx-theme fixes */
+
+/* this is most critical for the homepage logos, but affects all images */
+html[data-theme="dark"] img {
+    filter: none;
+}
+
+/* make versionadded smaller and inline with param name */
+/* don't do for deprecated / versionchanged; they have extra info (too long to fit) */
+div.versionadded > p {
+    margin-top: 0;
+    margin-bottom: 0;
+}
+div.versionadded {
+    margin: 0;
+    margin-left: 0.5rem;
+    display: inline-block;
+}
+/* when FF supports :has(), change to →  dd > p:has(+div.versionadded) */
+dd>p {
+    display: inline;
+}
+
+/* **************************************************** sphinx-gallery fixes */
+
+/* backreference links: restore hover decoration that SG removes */
+a.sphx-glr-backref-instance:hover {
+    text-decoration: underline;
+}
+/* backreference links: make non-MNE func/meth calls resemble regular code */
+a[class^="sphx-glr-backref-module"] {
+    color: var(--pst-color-text-base);
+}
+/* backreference links: make MNE calls bold and colorful */
+a[class^="sphx-glr-backref-module-mne"] {
+    color: var(--pst-color-link);
+    font-weight: var(--mne-font-weight-semibold);
+}
+/* suppress redundant note at top of every tutorial and signature at the end */
+div.sphx-glr-download-link-note,
+p.sphx-glr-signature {
+    visibility: hidden;
+    height: 0;
+    margin: 0;
+    padding: 0;
+}
+/* script/notebook download buttons */
+.sphx-glr-download a.download {
+    border-radius: 0.5rem;
+    /* ↓↓↓↓↓↓↓ these two rules copied from sphinx-design */
+    box-shadow: 0 .125rem .25rem var(--sd-color-shadow) !important;
+    text-decoration: none;
+    transition: color .15s ease-in-out,background-color .15s ease-in-out,border-color .15s ease-in-out,box-shadow .15s ease-in-out;
+}
+.sphx-glr-download a.download code {
+    color: var(--sg-download-a-color);
+}
+.sphx-glr-download a.download::before {
+    color: var(--sg-download-a-color);
+}
+/* Report embedding */
+iframe.sg_report {
+    width: 95%;
+    height: 70vh;
+    margin: 20px auto;
+    display: block;
+    border-style: solid;
+}
+/* Disable thumbnail tooltips on hover */
+.sphx-glr-thumbcontainer[tooltip]:hover::before,
+.sphx-glr-thumbcontainer[tooltip]:hover::after {
+    display: none;
+}
+
+/* Make our external thumbnails (e.g., mne-gui-addons) act like standard SG ones */
+.sphx-glr-thumbcontainer a.external {
+    bottom: 0;
+    display: block;
+    left: 0;
+    box-sizing: border-box;
+    padding: 150px 10px 0;
+    position: absolute;
+    right: 0;
+    top: 0;
+}
+
+/* ******************************************************** HTML repr tables */
+
+/* make table responsive to pydata-sphinx-theme's light/dark mode */
+.table > :not(caption) > * > * {
+    color: var(--pst-color-text-base);
+}
+.mne-repr-table tbody tr:hover {
+    background-color: var(--pst-color-table-row-hover-bg);
+}
+.mne-repr-section-toggle > button > svg > path {
+    fill: var(--pst-color-text-base);
+}
+/* make the expand/collapse button look nicer */
+.mne-repr-section-toggle > button {
+    padding: 20%;
+}
+/* make section header rows more distinct (and harmonize with pydata-sphinx-theme table
+style in the process). Color copied from pydata-sphinx-theme; 2px copied from bootstrap.
+*/
+.mne-repr-table th {
+    border-bottom: 2px solid var(--pst-color-primary);
+}
+/* harmonize the channel names buttons with the rest of the table */
+.mne-ch-names-btn {
+    font-size: inherit;
+    padding: 0.25rem;
+    min-width: 1.5rem;
+    font-weight: bold;
+}
+/*
+.mne-ch-names-btn:hover {
+    background-color: var(--pst-color-);
+    text-decoration: underline;
+}
+.mne-ch-names-btn:focus-visible {
+    outline: 0.1875rem solid var(--pst-color-accent);
+    outline-offset: 0.1875rem;
+}
+*/
+/* ***************************************************** sphinx-design fixes */
+p.btn a {
+    color: unset;
+}
+/* sphinx-design tabs */
+html .bd-content .sd-tab-set > label:hover,
+.bd-content .sd-tab-set > input:not(:checked) + label:hover {
+    opacity: unset;
+    color: var(--pst-color-secondary);
+    border-color: var(--pst-color-secondary);
+}
+
+/* ************************************************************* copy button */
+button.copybtn {
+    /* always show; https://sphinx-copybutton.readthedocs.io/en/latest/use.html#modify-the-copy-button-s-css */
+    opacity: var(--copybtn-opacity);
+ }
+
+/* *************************************************** bib reference spacing */
+aside.footnote {
+    margin-bottom: 0.5rem;
+}
+aside.footnote:last-child {
+    margin-bottom: 1rem;
+}
+
+/* ******************************************************** version dropdown */
+.dropdown-toggle {
+    font-weight: var(--mne-font-weight-semibold);
+}
+
+/* ******************************************************* navbar icon links */
+.navbar-icon-links svg.fa-square-github {
+    color: var(--mne-color-github);
+}
+.navbar-icon-links svg.fa-discourse {
+    color: var(--mne-color-discourse);
+}
+.navbar-icon-links svg.fa-discord {
+    color: var(--mne-color-discord);
+}
+.navbar-icon-links svg.fa-mastodon {
+    color: var(--mne-color-mastodon);
+}
+
+/* ************************************************************ nav elements */
+/* topbar nav inactive */
+.bd-header.navbar-light#navbar-main .navbar-nav li a.nav-link {
+    color: var(--pst-color-text-muted);
+}
+/* topbar nav active */
+.bd-header.navbar-light#navbar-main .navbar-nav > li.active > .nav-link {
+    font-weight: var(--mne-font-weight-semibold);
+}
+/* topbar nav hover */
+.bd-header.navbar-light#navbar-main .navbar-nav li a.nav-link:focus,
+.bd-header.navbar-light#navbar-main .navbar-nav li a.nav-link:hover {
+    color: var(--pst-color-secondary);
+}
+
+/* *********************************************************** homepage logo */
+img.logo {
+    max-width: 360px;
+    width: 100%;
+}
+
+/* **************************************************** homepage quick links */
+ul.quicklinks a {
+    font-weight: var(--mne-font-weight-semibold);
+    color: var(--pst-color-text-base);
+    text-decoration: none;
+}
+ul.quicklinks a svg {
+    color: var(--pst-color-text-muted);
+}
+ul.quicklinks a:hover {
+    text-decoration: none;
+}
+h5.card-header {
+    margin-top: 0px;
+    margin-bottom: 0px;
+    color: var(--pst-color-text-base);
+}
+h5.card-header::before {
+    height: 0px;
+    margin-top: 0px;
+}
+/* ******************************************************* homepage carousel */
+div.frontpage-gallery {
+    overflow: hidden;
+    height: 180px;
+    justify-content: center;
+}
+div.frontpage-gallery a {
+    text-decoration: none;
+    color: var(--pst-color-text-base);
+}
+div.frontpage-gallery img.card-img {
+    transform: scale(1.8);
+    transform-origin: 40% 20%;
+    opacity: 0.2;
+    transition: 400ms ease-out;
+}
+div.frontpage-gallery:hover img.card-img {
+    transform: scale(1.2);
+    opacity: 1.0;
+    transition: 400ms ease-out;
+}
+div.frontpage-gallery .fadeout {
+    opacity: 1.0;
+    transition: 200ms linear;
+}
+div.frontpage-gallery:hover .fadeout {
+    opacity: 0.0;
+    transition: 200ms linear;
+}
+/* affects the homepage gallery tiles and the homepage sidebar quicklinks card;
+   needed for dark mode. */
+div.card {
+    border: 1px solid var(--pst-color-border);
+    background-color: var(--pst-color-background);
+}
+.card-header {
+    border-bottom-color: var(--pst-color-border);
+    background-color: var(--mne-color-card-header);
+}
+
+/* *************************************** homepage funder/institution logos */
+div#funder-logos div.card,
+div#funder-logos div.card img,
+div#institution-logos div.card,
+div#institution-logos div.card img,
+div#contributor-avatars div.card,
+div#contributor-avatars div.card img {
+    background-color: unset;
+    border: none;
+    border-radius: unset;
+}
+div#contributor-avatars div.card img {
+    width: 2.5em;
+}
+.contributor-avatar {
+    clip-path: circle(closest-side);
+}
+
+/* ************************************************************ funders page */
+ul.funders li {
+    margin-left: 36px;
+    text-indent: -36px;
+    padding-bottom: 9px;
+}
+ul.funders li img {
+    width: 30px;
+    max-height: 24px;
+    object-fit: contain;
+    background-color: unset !important;
+}
+
+/* *********************************************************** contrib guide */
+ul.icon-bullets {
+    list-style-type: none;
+    padding-left: 2em;
+    text-indent: -1.5em;
+}
+.small-stack {
+    font-size: 0.5em;
+}
+
+/* *********************************************************** miscellaneous */
+.hidden {
+    display: none;
+}
+img.hidden {
+    visibility: hidden;
+}
+td.justify {
+    text-align-last: justify;
+}
+
+/* Matplotlib HTML5 video embedding */
+div.sphx-glr-animation video {
+    max-width: 100%;
+    height: auto;
+}
+
+/* fix sidebar scrollbars */
+.sidebar-primary-items__end {
+    margin-bottom: 0 !important;
+    margin-top: 0 !important;
+    margin-left: 0 !important;
+    margin-right: 0 !important;
+}