Font is thinner in editor mode than in preview mode. How do I change that?

I read one of @Klaas’s (sorry for the unnecessary tagging, couldn’t help myself) comments about using the same font for preview and editor mode to get the WYSIWYG feel, and I wanted to try it myself.

I tried looking at my custom CSS to see what I can do to get that (might have done a terrible job of doing so). Though I have no experience with CSS, I am fairly certain that both preview and editor mode are using the same font with slight adjustments, font-weight perhaps? or regular vs light font? Whatever those adjustments are, I can’t seem to find them, nor do I know what to look for.

I’m using the Red Graphite theme (both dark and light mode have this problem) with some custom CSS hacks.

Here's my custom CSS:
.theme-light
{
  --background-inline-code: rgb(240, 240, 240);
  --background-nav-alt: rgb(58, 62, 63);
  --background-nav-file-tag: rgb(203, 77, 73);
  --background-nav-selected: rgb(203, 77, 73);
  --background-nav: rgb(41, 44, 46);
  --background-primary: rgb(250, 250, 250);
  --background-tag: #b5b5b5;
  --border-inline-code: rgb(215, 215, 215);
  --code-block-background: #ffffff;
  --code-block-border: #92a1a17a;
  --font-family-editor: Avenir, "Avenir Next", "Avenir Next Cyr", 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Microsoft YaHei Light", sans-serif;
  --font-family-preview: Avenir, "Avenir Next", "Avenir Next Cyr", 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Microsoft YaHei Light", sans-serif;
  --interactive-accent: rgb(203, 77, 73);
  --text-accent: rgb(203, 77, 73);
  --text-faint: rgb(150, 150, 150);
  --text-header: rgb(44, 44, 44);
  --text-highlight-bg: #b4ff0066;
  --text-inline-code: rgb(45, 45, 45);
  --text-nav-selected: rgb(255, 255, 255);
  --text-nav: rgb(190, 190, 190);
  --text-normal: rgb(44, 44, 44);
}

.theme-dark {
  --background-inline-code: rgb(41, 44, 46);
  --background-nav-alt: rgb(58, 62, 63);
  --background-nav-file-tag: rgb(116, 190, 247);
  --background-nav-selected: rgb(73, 73, 73);
  --background-nav: rgb(41, 44, 46);
  --background-primary: rgb(28, 30, 32);
  --background-tag: rgb(111, 112, 116);
  --border-inline-code: rgb(76, 76, 76);
  --code-block-background: rgb(32, 32, 32);
  --code-block-border: rgb(77, 77, 77);
  --font-family-editor: Avenir, "Avenir Next";
  --font-family-preview: Avenir, "Avenir Next";
  --interactive-accent: rgb(116, 190, 247);
  --text-accent: rgb(116, 190, 247);
  --text-faint: rgb(150, 150, 150);
  --text-header: rgb(198, 213, 224);
  --text-highlight-bg: rgb(64, 73, 181);
  --text-inline-code: rgb(230, 230, 230);
  --text-nav-selected: rgb(255, 255, 255);
  --text-nav: rgb(190, 190, 190);
  --text-normal: rgb(216, 216, 216);
}

/* header colors */
.cm-header, 
.markdown-preview-view h1,
.markdown-preview-view h2,
.markdown-preview-view h3,
.markdown-preview-view h4,
.markdown-preview-view h5 {
  color: var(--text-header);
}

.markdown-preview-view h6 {
  display: none;
}

/* Changing size/color of the header hashtags ## */
.cm-formatting-header {
	color: var(--text-faint);
  font-size: 0.6em;
}

/* Backlinks header colors - thanks @a-star-wave! */
.side-dock-collapsible-section-header {
  color: var(--text-nav);
}

/* Headers in editor - hide the #'s */
/* .cm-formatting-header-1, .cm-formatting-header-2, .cm-formatting-header-3, .cm-formatting-header-4, .cm-formatting-header-5, .cm-formatting-header-6, .cm-formatting-header-7 {
  visibility: hidden; 
  position: relative; 
  width: 20px; 
  display: inline-block;
} */

/* Headers in editor - show custom content - common */
/* .cm-formatting-header-1:after, .cm-formatting-header-2:after, .cm-formatting-header-3:after, .cm-formatting-header-4:after, .cm-formatting-header-5:after, .cm-formatting-header-6:after, .cm-formatting-header-7:after {
  visibility: visible;
  position: absolute;
  left: 0;
  font-size: 12px;
} */

/* Headers in editor - show custom content - specifics */
/* .cm-formatting-header-1:after { bottom:  2px; content: "H1"; }
.cm-formatting-header-2:after { bottom:  0px; content: "H2"; }
.cm-formatting-header-3:after { bottom:  0px; content: "H3"; }
.cm-formatting-header-4:after { bottom: -1px; content: "H4"; }
.cm-formatting-header-5:after { bottom: -1px; content: "H5"; }
.cm-formatting-header-6:after { bottom: -1px; content: "H6"; }
.cm-formatting-header-7:after { bottom: -1px; content: "H7"; } */

.cm-s-obsidian span.cm-url {
  color: var(--text-accent);
}

.markdown-preview-view mark {
  color: var(--text-normal);
  padding: 0px 4px;
}

.cm-formatting-em.cm-em {
  color: var(--text-faint);
  font-weight: 100;
  font-size: 0.6em;
}
.cm-formatting-strong.cm-strong {
  color: var(--text-faint);
  font-weight: 100;
  font-size: 0.6em;
}







/* Wrap long nav text */
.nav-file-title, .nav-folder-title {
  white-space: normal;
}

/* Indent wrapped nav text */
.nav-file-title-content {
  margin-left: 10px;
  text-indent: -10px;
}

/* Horizontal rule between Icons and vault in left nav */
.nav-buttons-container {
  border-bottom: 1px solid var(--background-nav-alt);
}

/* The name of the vault */
.nav-folder.mod-root > .nav-file-title, .nav-folder.mod-root > .nav-folder-title {
  color: var(--text-nav);
}

/* Color of left nav tree text */
.nav-file-title, .nav-folder-title {
  color: var(--text-nav);
}


/* New top tabs */
.workspace-tabs {
  background-color: var(--background-nav-alt);
}

.workspace-tab-header-container {
  background-color: var(--background-nav-alt);
}

/* Color of the curve of the top tabs */
.workspace-tab-container-before.is-before-active,
.workspace-tab-container-after.is-after-active,
.workspace-tab-header.is-before-active,
.workspace-tab-header.is-after-active {
  background-color: var(--background-nav);
}

/* Background color of unselected tabs */
.workspace-tab-container-before.is-before-active .workspace-tab-header-inner, 
.workspace-tab-container-after.is-after-active .workspace-tab-header-inner, 
.workspace-tab-header.is-before-active .workspace-tab-header-inner, 
.workspace-tab-header.is-after-active .workspace-tab-header-inner {
  background-color: var(--background-nav-alt);
}

/* Background color of selected tab */
.workspace-tab-header.is-active {
  background-color: var(--background-nav);
}

/* resize handle coloring */
.workspace-leaf-resize-handle {;
  background-color: transparent;
}

/* Set the left nav background to same color as ribbon so we can make a curved corner that matches */
.workspace-tabs .workspace-leaf {
  background-color: var(--background-nav-alt);
}

/* Set the left nav background to different color from ribbon, and give a curved corner with statusbar */
.mod-left-split .workspace-tabs .workspace-leaf .workspace-leaf-content {
  background-color: var(--background-nav);
  border-bottom-left-radius: 10px;
  border-top-left-radius: 10px;
}

/* Set the right nav background to different color from ribbon, and give a curved corner with statusbar */
.mod-right-split .workspace-tabs .workspace-leaf .workspace-leaf-content {
  background-color: var(--background-nav);
  border-bottom-right-radius: 10px;
  border-top-right-radius: 10px;
}

.side-dock.mod-right {
  border-left: 0px;
}

/* Left nav ribbon background color */
.side-dock-ribbon {
  background-color: var(--background-nav-alt);
}

/* Left nav ribbon background-color */
.side-dock-ribbon-before.is-before-active, 
.side-dock-ribbon-after.is-after-active, 
.side-dock-ribbon-tab.is-before-active, 
.side-dock-ribbon-tab.is-after-active {
  background-color: var(--background-nav);
}

/* Left nav ribbon background-color */
.side-dock-ribbon-before.is-before-active .side-dock-ribbon-tab-inner, 
.side-dock-ribbon-after.is-after-active .side-dock-ribbon-tab-inner, 
.side-dock-ribbon-tab.is-before-active .side-dock-ribbon-tab-inner, 
.side-dock-ribbon-tab.is-after-active .side-dock-ribbon-tab-inner {
  background-color: var(--background-nav-alt);
}

/* Left nav ribbon active background-color */
.side-dock-ribbon-tab.is-active {
  background-color: var(--background-nav);
}

/* Left nav ribbon active hover text color (icon color) */
.side-dock-ribbon-tab.is-active:hover {
  color: var(--text-accent);
}

/* Left nav ribbon inactive hover text color (icon color) */
.side-dock-ribbon-tab:hover,
.side-dock-ribbon-action:hover {
  color: var(--text-accent);
}

/* Background and text color of selected item in left nav tree */
.nav-file.is-active > .nav-file-title, 
.nav-file.is-active > .nav-folder-title, 
.nav-file.is-active > .nav-folder-collapse-indicator, 
.nav-folder.is-active > .nav-file-title, 
.nav-folder.is-active > .nav-folder-title, 
.nav-folder.is-active > .nav-folder-collapse-indicator {
  background-color: var(--background-nav-selected);
  color: var(--text-nav-selected);
}

/* Background and text color of selected item in left nav tree - when hovering */
.nav-file.is-active > .nav-file-title:hover, 
.nav-file.is-active > .nav-folder-title:hover, 
.nav-file.is-active > .nav-folder-collapse-indicator:hover, 
.nav-folder.is-active > .nav-file-title:hover, 
.nav-folder.is-active > .nav-folder-title:hover, 
.nav-folder.is-active > .nav-folder-collapse-indicator:hover {
  background-color: var(--text-accent);
  color: var(--text-nav-selected);
}

/* Background and text color of hovered item in left nav tree */
body:not(.is-grabbing) .nav-file-title:hover, 
body:not(.is-grabbing) .nav-folder-title:hover {
  background-color: var(--background-secondary-alt);
  color: var(--text-nav-selected);
}

/* Background and text color of hovered collapse indicator in left nav tree */
body:not(.is-grabbing) .nav-file-title:hover .nav-folder-collapse-indicator,
body:not(.is-grabbing) .nav-folder-title:hover .nav-folder-collapse-indicator {
  background-color: var(--background-secondary-alt);
  color: var(--text-nav-selected);
}

/* Left Nav menu item - hover background color */
body:not(.is-grabbing) .nav-file-title:hover,
body:not(.is-grabbing) .nav-folder-title:hover {
  background-color: var(--background-nav-alt);
}

/* Left Nav menu item - hover background color of the collapse/expand arrow */
body:not(.is-grabbing) .nav-file-title:hover .nav-folder-collapse-indicator, 
body:not(.is-grabbing) .nav-folder-title:hover .nav-folder-collapse-indicator {
  background-color: var(--background-nav-alt);
}

/* Left side dock */
.side-dock.mod-left {
  border-right: 1px solid var(--background-secondary-border);
}

/* Font adjustments for pane headers */
.view-header-title {
  font-size: 16px;
  font-weight: 600;
}

/* Status bar ... duh? :) */
.status-bar {
  background-color: var(--background-nav-alt);
  border-top: 0px solid var(--background-nav-alt);
  color: var(--text-nav);
}

/* Testing a gradient design for statusbar */
/* .status-bar {
  border-top: 0px;
  background-color: var(--background-nav-alt);
  background: linear-gradient(90deg, rgba(255,0,0,0) 5%, var(--background-nav-alt) 20%);
  position: absolute;
  right: 0;
  bottom: 0;
  width: 500px;
  color: var(--text-nav);
} */

/* Context menu hover item */
.menu-item:hover {
  background-color: var(--background-secondary-alt);
  color: var(--text-accent);
}


/* Font for the markdown source panel */
div.markdown-source-view {
	font-family: var(--font-family-editor);
}

/* Font for the markdown preview panel */
div.markdown-preview-view {
	font-family: var(--font-family-preview);
}

/* Coloring the list bullets/numbers */
.cm-s-obsidian span.cm-formatting-list {
	color: var(--text-accent);
  font-size: 0.85em;
  font-weight: 500;
  font-family: var(--font-monospace);
}

/* Editor view - task list, color and veritcal align */
.cm-s-obsidian span.cm-formatting-task {
  color: var(--text-accent);
  font-size: 0.85em;
  font-weight: 500;
  position: relative;
  top: -0.12em;
}

/* Preview Checkboxes don't seem to align correctly */
.markdown-preview-view .task-list-item-checkbox {
  /* width: 15px; */
  /* height: 15px; */
  /* position: relative; */
  /* top: 3px; */
}

/* Resetting the default hue-rotate(42deg) */
.markdown-preview-view .task-list-item-checkbox {
  /* filter: hue-rotate(42deg); -- DEFAULT */
  filter: none;
}

.CodeMirror .cm-math {
  color: var(--text-inline-code);
}

/* color of inline code ticks */
.cm-s-obsidian span.cm-inline-code.cm-formatting-code {
  color: var(--text-faint);
}

/* color of inline code */
.cm-s-obsidian span.cm-inline-code {
  color: var(--text-inline-code);
}

/* color and border of inline code (between the ticks) */
.cm-s-obsidian span.cm-inline-code:not(.cm-formatting):not(.cm-hmd-indented-code),
.markdown-preview-section code {
  background-color: var(--background-inline-code);
  border: 0px solid var(--border-inline-code);
  padding: 4px 4px;
  font-weight: 600;
  color: var(--text-inline-code);
}

/* Preview code block background */
.markdown-preview-view pre {
  padding: 1em;
  background-color: var(--code-block-background);
  border-radius: 4px;
  border: 1px solid var(--code-block-border);
  white-space: pre-wrap;
  line-height: 1.0em;
}

/* Unset the background and font weight from where we set it for inline code */
.markdown-preview-view pre code {
  background-color: transparent;
  font-weight: normal;
}

/* Code block border color */
.cm-s-obsidian div.HyperMD-codeblock-begin-bg {
	border-top: 1px solid var(--code-block-border);
	border-top-left-radius: 4px;
	border-top-right-radius: 4px;
}

/* Code block border color */
.cm-s-obsidian div.HyperMD-codeblock-end-bg {
	border-bottom: 1px solid var(--code-block-border);
	border-bottom-left-radius: 4px;
	border-bottom-right-radius: 4px;
}

/* Code block background color */
.cm-s-obsidian div.HyperMD-codeblock-bg {
  background-color: var(--code-block-background);
}

/* Code block left and right padding */
.cm-s-obsidian pre.HyperMD-codeblock {
  padding: 0px 10px 0px 10px;
  color: var(--text-inline-code);
}

/* Code block top padding */
.cm-s-obsidian pre.HyperMD-codeblock-begin {
	padding-top: 10px;
}

/* Code block bottom padding */
.cm-s-obsidian pre.HyperMD-codeblock-end {
	padding-top: 10px;
}

/* Code block left and right border colors */
.cm-s-obsidian div.HyperMD-codeblock-bg {
	border-left: 1px solid var(--code-block-border);
	border-right: 1px solid var(--code-block-border);
}

/* Enable wrapping of code blocks in the preview panel */
.theme-light code[class*="language-"], .theme-light pre[class*="language-"],
.theme-dark code[class*="language-"], .theme-dark pre[class*="language-"] {
  white-space: pre-wrap;
  background-color: var(--code-block-background);
}

/* Add some spacing when a #hashtag is used */
/* .cm-hashtag, .markdown-preview-section .tag {
  line-height: 1.9em;
} */

/* Tag pillbox - common settings for editor left, editor right and preview */
.cm-s-obsidian span.cm-hashtag-begin, 
.cm-s-obsidian span.cm-hashtag-end,
a.tag {
  background-color: var(--background-tag);
  color: var(--text-nav-selected);
  padding-bottom: 2px;
  padding-top: 2px;
	text-decoration: none;
  font-family: var(--font-family-editor);
  font-size: 0.9em;
}

/* Tag editor left side pillbox */
.cm-s-obsidian span.cm-hashtag-begin {
	border-top-left-radius: 25px;
	border-bottom-left-radius: 25px;
	padding-left: 8px;
}

/* Tag editor right side pillbox */
.cm-s-obsidian span.cm-hashtag-end {
	border-top-right-radius: 25px;
	border-bottom-right-radius: 25px;
	padding-right: 10px;
}

/* Tag preview pillbox */
a.tag {
	border-top-left-radius: 250px;
	border-top-right-radius: 250px;
	border-bottom-left-radius: 250px;
	border-bottom-right-radius: 250px;
	padding-left: 10px;
	padding-right: 12px;
}

/* Add a tiny bit of padding to the link brackets and parenthesis */
.cm-s-obsidian span.cm-formatting-link,
.cm-s-obsidian span.cm-formatting-link-string {
  padding: 0 1px 0 1px;
  /* font-weight: 500; */
}

/* Additional left/right padding for tag pane so hover background has some room */
.tag-pane-tags {
  padding-left: 10px;
  padding-right: 5px;
}

/* Color the hover background like we do the selected left nav */
.tag-pane-tag:hover {
  background-color: var(--background-nav-alt);
  color: var(--text-nav-selected);
}

/* Style the tag pane tag count with the bear red coloring used in selected item from left nav */
.tag-pane-tag-count {
  background-color: var(--text-accent);
  color: var(--text-nav-selected);
}

/* Backlinks title match hover */
.search-result-file-title:hover {
  background-color: var(--background-nav-alt);
}

/* Backlinks content match hover */
.search-result-file-match:hover {
  background-color: var(--background-nav-alt);
}

/* Backlink titles for matches */
.search-result-file-title {
  color: var(--text-nav);
}

/* Backlink highlighted [[links]] */
.search-result-file-matched-text {
  color: var(--text-nav-selected);
  background-color: var(--text-accent);
  padding: 2px;
  border-radius: 4px;
}

/* Add button hovers to the the Update internal links modal (and possibly others) */
.modal-button-container button:not(.mod-cta):not(.mod-warning):hover {
  background-color: var(--text-accent);
  color: var(--text-nav-selected);
}

/* Background color of rename inputs */
.nav-file-title-content.is-being-renamed,
.nav-folder-title-content.is-being-renamed {
  cursor: text;
  border-color: var(--interactive-accent);
  background-color: var(--background-nav);
  padding-left: 15px;
}

/* Background color of file tags, like "png" */
.nav-file-tag {
  background-color: var(--background-nav-file-tag);
  color: var(--text-nav-selected);
}


/* Hide the title of the embeds */
.markdown-embed-title {
  display: none;
}

.markdown-preview-view .markdown-embed-content {
  max-height: unset;
  overflow-y: unset;
  padding-right: unset;
}


/* 
Try to support content in the navs... this is difficult because this theme is a 
split of dark and light. So content in the main pane should be light mode, while content
in the left pane should be dark mode
*/
/* .workspace-tabs .view-content {
  color: var(--text-nav);
} */



/* input[type=checkbox] {
  -webkit-appearance: none;
  appearance: none;
  border-radius: 50%;
  border: 1px solid var(--text-faint);
  padding: 0;
}
input[type=checkbox]:focus{
outline:0;
}
input[type=checkbox]:checked {
  background-color: var(--text-accent-hover);
  border: 1px solid var(--text-accent-hover);
  background-position: center;
  background-size: 70%;
  background-repeat: no-repeat;
  background-image: url('data:image/svg+xml; utf8, <svg width="12px" height="10px" viewBox="0 0 12 8" version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink"><g stroke="none" stroke-width="1" fill="none" fill-rule="evenodd"><g transform="translate(-4.000000, -6.000000)" fill="%23ffffff"><path d="M8.1043257,14.0367999 L4.52468714,10.5420499 C4.32525014,10.3497722 4.32525014,10.0368095 4.52468714,9.8424863 L5.24777413,9.1439454 C5.44721114,8.95166768 5.77142411,8.95166768 5.97086112,9.1439454 L8.46638057,11.5903727 L14.0291389,6.1442083 C14.2285759,5.95193057 14.5527889,5.95193057 14.7522259,6.1442083 L15.4753129,6.84377194 C15.6747499,7.03604967 15.6747499,7.35003511 15.4753129,7.54129009 L8.82741268,14.0367999 C8.62797568,14.2290777 8.3037627,14.2290777 8.1043257,14.0367999"></path></g></g></svg>');
} */


/* ======================================================== */
/* Checkbox stuff,  */
/* ======================================================== */
/* .markdown-preview-view .task-list-item-checkbox { height: 19px; } */
/* .task-list-item input { visibility: hidden; } */

/*
  Potential emoji:
  🗹☑️✅✔️🗸🗆◼️◻️▪️▫️🔵🟢🔴⚫⚪⭕❌🔘🔳⬛🔲🆗🟩🟧🟨🟪🟥🟦⬜🟫
*/

/* Unchecked, set the emoji icon to light grayscale */
/* .task-list-item input:not([checked=true])::after {
  content: "✅";
  opacity: 0.25;
  visibility: visible;
  cursor: pointer;
  filter: grayscale(1);
} */

/* 
  Checked, set emoji icon to red to match red graphite accent
  Note: 
    hue-rotate makes ✅ a red checkbox, but depends on source color,
    so you can't just swap in another emojie icon and have it be red
*/
/* .task-list-item input[checked=true]::after {
  content: "✅";
  visibility: visible;
  cursor: pointer;
  filter: hue-rotate(250deg);
} */

/* Andy Matuschak mode! V2! for 0.7.0! (so... 2.7?) */

/* everything under .mod-root now. Don't want Andy messing with sidebars */
/* also, Andy only makes sense for vertical splits, at the root level, right? */
.mod-root.workspace-split.mod-vertical { 
  overflow-x:auto; 
  --header-width: 36px; /* <- 36px is the header height in the default theme */
}
.mod-root.workspace-split.mod-vertical > div { 
  min-width: calc(700px + var(--header-width)); /* <-- 700px is the default theme's "readable" max-width */
  box-shadow: 0px 0px 20px 20px rgba(0,0,0,0.25);
  position:sticky;
  left:0;
}

/* shift sticky position, so titles will stack up to the left */
/* This will currently stack to a maximum of 10 before resetting */
.mod-root.workspace-split.mod-vertical > div:nth-child(10n-8) { left: calc(var(--header-width) * 0); }
.mod-root.workspace-split.mod-vertical > div:nth-child(10n-7) { left: calc(var(--header-width) * 1); }
.mod-root.workspace-split.mod-vertical > div:nth-child(10n-6) { left: calc(var(--header-width) * 2); }
.mod-root.workspace-split.mod-vertical > div:nth-child(10n-5) { left: calc(var(--header-width) * 3); }
.mod-root.workspace-split.mod-vertical > div:nth-child(10n-4) { left: calc(var(--header-width) * 4); }
.mod-root.workspace-split.mod-vertical > div:nth-child(10n-3) { left: calc(var(--header-width) * 5); }
.mod-root.workspace-split.mod-vertical > div:nth-child(10n-2) { left: calc(var(--header-width) * 6); }
.mod-root.workspace-split.mod-vertical > div:nth-child(10n-1) { left: calc(var(--header-width) * 7); }
.mod-root.workspace-split.mod-vertical > div:nth-child(10n+0) { left: calc(var(--header-width) * 8); }
.mod-root.workspace-split.mod-vertical > div:nth-child(10n+1) { left: calc(var(--header-width) * 9); }

/* now it's time for the fancy vertical titles */









/* Replace header hashes (#) by H1, H2, etc. in edit mode */ 
/* from Blue Topaz theme: DIRTY WYSIWYM HEADERS by _ph */

/* Header folder icon */
.CodeMirror-foldgutter-open, .CodeMirror-foldgutter-folded {
    padding-left: -10px;
  }
  
  .CodeMirror-sizer{
    margin-left: 35px !important;
  }
  
  /*-- reduce left padding --*/
  .CodeMirror {
    height: 100%;
    direction: ltr;
    padding: 0 5px;
  }
  
  /*-- hide # markup--*/
  .cm-formatting.cm-formatting-header.cm-formatting-header-1.cm-header.cm-header-1,
  .cm-formatting.cm-formatting-header.cm-formatting-header-2.cm-header.cm-header-2,
  .cm-formatting.cm-formatting-header.cm-formatting-header-3.cm-header.cm-header-3,
  .cm-formatting.cm-formatting-header.cm-formatting-header-4.cm-header.cm-header-4,
  .cm-formatting.cm-formatting-header.cm-formatting-header-5.cm-header.cm-header-5,
  .cm-formatting.cm-formatting-header.cm-formatting-header-6.cm-header.cm-header-6
  {font-size:0px;}
  
  /*-- display H1-h6 in gutter--*/
  .cm-formatting.cm-formatting-header.cm-formatting-header-1.cm-header.cm-header-1:before{
    content:"H1";
    font-size:9px;
    color: var(--h1ys);
    left:-20.75px;
    top:11px;
    position:absolute;
  }
  .cm-formatting.cm-formatting-header.cm-formatting-header-2.cm-header.cm-header-2:before{
    content:"H2";
    font-size:9px;
    color: var(--h2ys);
    left:-20.75px;
    top:9px;
    position:absolute;
  }
  .cm-formatting.cm-formatting-header.cm-formatting-header-3.cm-header.cm-header-3:before{
    content:"H3";
    font-size:9px;
    color: var(--h3ys);
    left:-20.5px;
    top: 7px;
    position:absolute;
  }
  .cm-formatting.cm-formatting-header.cm-formatting-header-4.cm-header.cm-header-4:before{
    content:"H4";
    font-size:9px;
    color: var(--h4ys);
    left:-20.5px;
    top: 7px;
    position:absolute;
  }
  .cm-formatting.cm-formatting-header.cm-formatting-header-5.cm-header.cm-header-5:before{
    content:"H5";
    font-size:9px;
    color: var(--h5ys);
    left:-20px;
    top: 9px;
    position:absolute;
  }
  .cm-formatting.cm-formatting-header.cm-formatting-header-6.cm-header.cm-header-6:before{
    content:"H6";
    font-size:9px;
    color: var(--h6ys);
    left:-19.5px;
    top: 9px;
    position:absolute;
  }
  
  /*-- is active line, hide H[1-6] in gutter --*/
  .CodeMirror-activeline span.cm-formatting.cm-formatting-header.cm-formatting-header-1.cm-header.cm-header-1:before,
  .CodeMirror-activeline span.cm-formatting.cm-formatting-header.cm-formatting-header-2.cm-header.cm-header-2:before,
  .CodeMirror-activeline span.cm-formatting.cm-formatting-header.cm-formatting-header-3.cm-header.cm-header-3:before,
  .CodeMirror-activeline span.cm-formatting.cm-formatting-header.cm-formatting-header-4.cm-header.cm-header-4:before,
  .CodeMirror-activeline span.cm-formatting.cm-formatting-header.cm-formatting-header-5.cm-header.cm-header-5:before,
  .CodeMirror-activeline span.cm-formatting.cm-formatting-header.cm-formatting-header-6.cm-header.cm-header-6:before
  {font-size:0px;}
  
  /*-- is active line, display # markup --*/
  .CodeMirror-activeline > pre > span .cm-formatting.cm-formatting-header.cm-formatting-header-1.cm-header.cm-header-1{
    font-size:24px;
    display:inline;
  }
  .CodeMirror-activeline > pre > span .cm-formatting.cm-formatting-header.cm-formatting-header-2.cm-header.cm-header-2{
    font-size:22px;
    display:inline;
  }
  .CodeMirror-activeline > pre > span .cm-formatting.cm-formatting-header.cm-formatting-header-3.cm-header.cm-header-3{
    font-size:20px;
    display:inline;
  }
  .CodeMirror-activeline > pre > span .cm-formatting.cm-formatting-header.cm-formatting-header-4.cm-header.cm-header-4{
    font-size:18px;
    display:inline;
  }
  .CodeMirror-activeline > pre > span .cm-formatting.cm-formatting-header.cm-formatting-header-5.cm-header.cm-header-5{
    font-size:16px;
    display:inline;
  }
  .CodeMirror-activeline > pre > span .cm-formatting.cm-formatting-header.cm-formatting-header-6.cm-header.cm-header-6{
    font-size:16px;
    display:inline;
  }






/* DECLUTTER;  
from Obuntu Theme https://github.com/DubininDmitry/Obuntu-theme-for-Obsidian/blob/master/obsidian.css 
copy&paste this to your obsidian.css to get a edit mode kind of similar to WYSIWYM
*/

/* change heading size in edit mode */
/* for better looking after enable Clutter free edit mode */
.cm-header-1 {
  font-size: 30px;
  color: var(--text-accent);
}

/* === Clutter free edit mode === */
/* inline formatting, link targets and [[ ]] disappears if not active line*/
div:not(.CodeMirror-activeline) > .CodeMirror-line span.cm-formatting {
  display: none;
}
/* except list markers, links, images, urls and code blocks */
span.cm-header-1,
span.cm-header-2,
span.cm-header-3,
span.cm-header-4,
span.cm-header-5,
span.cm-header-6,
span.cm-hashtag,
span.cm-image,
span.cm-link,
span.cm-url,
span.cm-formatting-list,
span.cm-formatting-code-block.cm-hmd-codeblock {
  /* header hashes -  span.cm-formatting-header */
  display: inline !important;
}

/* hide all html tags -- IT IS COMMENTED OUT BY DEFAULT */
/* div:not(.CodeMirror-activeline) > .CodeMirror-line span.cm-tag{ display: none; } */

/* and task checkboxes */
span.cm-formatting-task {
  display: inline !important;
  font-family: monospace;
}

/* remove borders in iframe */
iframe {
  border-width: 0;
}

/* Enlarge image on hover */
.markdown-preview-view img {
  display: block;
  margin-top: 20pt;
  margin-bottom: 20pt;
  margin-left: auto;
  margin-right: auto;
  width: 50%; /*experiment with values*/
  transition: transform 0.25s ease;
}

.markdown-preview-view img:hover {
  -webkit-transform: scale(2); /* experiment with values */
  transform: scale(2);
}

/* fix background of folder-collapse-indicator */
body:not(.is-grabbing) .nav-folder-title:hover .nav-folder-collapse-indicator {
  background: none;
}

/* change highlight h1 in text from outline panel or search */
/* because color the same */

.markdown-preview-view .mod-highlighted h1 {
  color: white;
}

or here’s the file: obsidian.css (26.8 KB)

@3mbry0: there will always be a slight difference between the Edit and Preview modes, even if you use identical font families, which you do.

Remember that it is not possible to create an exact WYSIWYG set-up.

Another thing is that if you open your CSS in an editor, then search for “font” you might find the slight adjustments, although I am not sure if you’re not looking for the non-existent.

I would suggest opening up developer tools and inspecting the CSS properties being used. In theory, you should be able to get the font rendering to be the same. I’ve had issues with line height, but that’s something different. In your screenshot, it does look like an issue with color and font-weight, both of which can be overridden.

If you do not know how to use developer tools, here’s a post that’s helpful https://forum.obsidian.md/t/getting-comfortable-with-obsidian-css/133

@3mbry0: there has been a further development to hide even more markdown, so the WYSIWYG feel is now almost perfect. Have a look at this comment by @Piotr. Now it looks really good.

add this to your css to make editor’s mode font thicker

.cm-s-obsidian .CodeMirror-line * {
    -webkit-font-smoothing: auto;
}
3 Likes

@Piotr: man, you’re magic.

2 Likes

Y’all are magic. Much thanks! :sob::sob:

@3mbry0: last but not least, if you disable the line numbers in the Obs settings, your WYSIWYG perception is as good as you’ll get it without the real thing, assuming you have implemente @Piotr’s code.

@Piotr: is it possible to exclude headers from getting that thicker font?

Yes, it’s possible

.cm-s-obsidian {
    -webkit-font-smoothing: auto;
}

.cm-s-obsidian .cm-header {
    -webkit-font-smoothing: antialiased;
}

@Piotr: as usual, thank you !!

@Piotr: there is still a difference. 1st, there is the fatter headers in Edit mode:

Then there is the “fattening” disabled, as per your last code snippet:

And this is what the same header looks like in Preview:

I checked the colours in Edit and Preview, they have the same rgb values. But the headers in Preview are thinner.

Can that be fixed?

Looking at your css file, you have different font-weight for headers in edit and preview mode.
Change this

.cm-header-1,
 .markdown-preview-view h1 {
     font-weight: 450;
     color: rgb(123, 108, 214);
     /* was(115, 98, 205); */
 }

into this

.cm-s-obsidian .cm-header-1,
 .markdown-preview-view h1 {
     font-weight: 450;
     color: rgb(123, 108, 214);
     /* was(115, 98, 205); */
 }

and do the same for all lower headers too (simply add .cm-s-obsidian for each). Currently this header style is overwritten in edit mode by original Obsidian css with font-weight: 600.

And after that remove

.cm-s-obsidian .cm-header {
    -webkit-font-smoothing: antialiased;
}

@Piotr: yes, that works. Thanks a lot !

Zero experience working with font smoothing here.

Is it OS dependent?
Best for dark background?

@Kiroro: I am on macOS and using a light theme.

1 Like

I have access only to mac, but there are multiple options that gives me the same effect, you can try with -webkit-font-smoothing: initial; or -webkit-font-smoothing: unset; or -webkit-font-smoothing: subpixel-antialiased;

Another reason might with this being overwritten by other styles if your using some custom theme, so try also with -webkit-font-smoothing: auto !important;

1 Like

None of the options worked on win10. So in certain extent confirmed the above but I am glad that it is beneficial for mac users.

Is this working on win10 -webkit-text-stroke: 0.3px; ?

Noticeably thicker, with !important. :+1:

Side track:
I was wondering if there is a way to thin down fonts (yes, going opposite), for a cleaner look. I repeated the above by lowering the px but had no luck.