diff --git a/github-dark.user.css b/github-dark.user.css
index 374f6c53b..0aa4bf59a 100644
--- a/github-dark.user.css
+++ b/github-dark.user.css
@@ -273,6 +273,9 @@
   .text-mono, .kKFNhh, .Link--secondary {
     color: #aaa !important;
   }
+  table[class*="DiffLines-module"], div[data-diff-anchor], #comments .border {
+    background: #181818;
+  }
   /* remove frontpage background */
   .application-main > .color-bg-default, .feed-background {
     background: transparent !important;
@@ -542,6 +545,9 @@
   .GlowCircleBackground-module__backgroundContainer--Lnepi {
     background-color: #f0f0f0;
   }
+  .cgFZpq:hover, .gjQlJX, .jdgHnn th {
+    background-color: var(--bgColor-muted, var(--color-canvas-subtle, #222));
+  }
   [data-color-mode="auto"][data-light-theme="light"],
   [data-color-mode="auto"][data-light-theme="light"] ::backdrop,
   [data-color-mode="light"][data-light-theme="light"],
@@ -1541,6 +1547,239 @@
       background-color: transparent;
     }
   }
+  .bHLmSv {
+    background-color: transparent;
+  }
+  .kTvpNk {
+    background-color: var(--bgColor-muted, var(--color-canvas-subtle, #222));
+  }
+  .kBQCgV {
+    background-color: transparent;
+  }
+  .kBQCgV, .kBQCgV:focus:not(:disabled) {
+    box-shadow: none;
+  }
+  .kBQCgV:focus-visible:not(:disabled) {
+    box-shadow: none;
+  }
+  .kBQCgV:disabled {
+    box-shadow: none;
+    background-color: var(--button-invisible-bgColor-disabled, transparent);
+  }
+  .kBQCgV[data-inactive]:not([disabled]):focus-visible {
+    box-shadow: none;
+  }
+  .dPmZyJ {
+    background-color: transparent;
+  }
+  .dPmZyJ, .dPmZyJ:focus:not(:disabled) {
+    box-shadow: none;
+  }
+  .dPmZyJ:focus-visible:not(:disabled) {
+    box-shadow: none;
+  }
+  .dPmZyJ:disabled {
+    box-shadow: none;
+    background-color: var(--button-invisible-bgColor-disabled, transparent);
+  }
+  .dPmZyJ[data-inactive]:not([disabled]):focus-visible {
+    box-shadow: none;
+  }
+  .iQGjqs {
+    background-color: var(--button-default-bgColor-rest, var(--color-btn-bg, #222));
+  }
+  .iQGjqs:focus:not(:disabled) {
+    box-shadow: none;
+  }
+  .iQGjqs:focus-visible:not(:disabled) {
+    box-shadow: none;
+  }
+  .iQGjqs:disabled {
+    box-shadow: none;
+  }
+  .iQGjqs[data-inactive]:not([disabled]):focus-visible {
+    box-shadow: none;
+  }
+  .iQGjqs:hover:not([disabled]):not([data-inactive]) {
+    background-color: var(--button-default-bgColor-hover, var(--color-btn-hover-bg, #242424));
+  }
+  .iLfocZ {
+    background-color: var(--button-default-bgColor-rest, var(--color-btn-bg, #222));
+  }
+  .iLfocZ:focus:not(:disabled) {
+    box-shadow: none;
+  }
+  .iLfocZ:focus-visible:not(:disabled) {
+    box-shadow: none;
+  }
+  .iLfocZ:disabled {
+    box-shadow: none;
+  }
+  .iLfocZ[data-inactive]:not([disabled]):focus-visible {
+    box-shadow: none;
+  }
+  .iLfocZ:hover:not([disabled]):not([data-inactive]) {
+    background-color: var(--button-default-bgColor-hover, var(--color-btn-hover-bg, #242424));
+  }
+  .JVsBq {
+    background-color: var(--button-default-bgColor-rest, var(--color-btn-bg, #222));
+  }
+  .JVsBq:focus:not(:disabled) {
+    box-shadow: none;
+  }
+  .JVsBq:focus-visible:not(:disabled) {
+    box-shadow: none;
+  }
+  .JVsBq:disabled {
+    box-shadow: none;
+  }
+  .JVsBq[data-inactive]:not([disabled]):focus-visible {
+    box-shadow: none;
+  }
+  .JVsBq:hover:not([disabled]):not([data-inactive]) {
+    background-color: var(--button-default-bgColor-hover, var(--color-btn-hover-bg, #242424));
+  }
+  .fwExmK {
+    background-color: transparent;
+  }
+  .fwExmK, .fwExmK:focus:not(:disabled) {
+    box-shadow: none;
+  }
+  .fwExmK:focus-visible:not(:disabled) {
+    box-shadow: none;
+  }
+  .fwExmK:disabled {
+    box-shadow: none;
+    background-color: var(--button-invisible-bgColor-disabled, transparent);
+  }
+  .fwExmK[data-inactive]:not([disabled]):focus-visible {
+    box-shadow: none;
+  }
+  .ifVXZX {
+    background-color: var(--button-default-bgColor-rest, var(--color-btn-bg, #222));
+  }
+  .ifVXZX:focus:not(:disabled) {
+    box-shadow: none;
+  }
+  .ifVXZX:focus-visible:not(:disabled) {
+    box-shadow: none;
+  }
+  .ifVXZX:disabled {
+    box-shadow: none;
+  }
+  .ifVXZX[data-inactive]:not([disabled]):focus-visible {
+    box-shadow: none;
+  }
+  .ifVXZX:hover:not([disabled]):not([data-inactive]) {
+    background-color: var(--button-default-bgColor-hover, var(--color-btn-hover-bg, #242424));
+  }
+  .gGdPyq {
+    background-color: var(--button-default-bgColor-rest, var(--color-btn-bg, #222));
+  }
+  .gGdPyq:focus:not(:disabled) {
+    box-shadow: none;
+  }
+  .gGdPyq:focus-visible:not(:disabled) {
+    box-shadow: none;
+  }
+  .gGdPyq:disabled {
+    box-shadow: none;
+  }
+  .gGdPyq[data-inactive]:not([disabled]):focus-visible {
+    box-shadow: none;
+  }
+  .gGdPyq:hover:not([disabled]):not([data-inactive]) {
+    background-color: var(--button-default-bgColor-hover, var(--color-btn-hover-bg, #242424));
+  }
+  .dOuZvu {
+    background-color: var(--button-default-bgColor-rest, var(--color-btn-bg, #222));
+  }
+  .dOuZvu:focus:not(:disabled) {
+    box-shadow: none;
+  }
+  .dOuZvu:focus-visible:not(:disabled) {
+    box-shadow: none;
+  }
+  .dOuZvu:disabled {
+    box-shadow: none;
+  }
+  .dOuZvu[data-inactive]:not([disabled]):focus-visible {
+    box-shadow: none;
+  }
+  .dOuZvu:hover:not([disabled]):not([data-inactive]) {
+    background-color: var(--button-default-bgColor-hover, var(--color-btn-hover-bg, #242424));
+  }
+  .kOvYzm {
+    background-color: transparent;
+  }
+  .kOvYzm, .kOvYzm:focus:not(:disabled) {
+    box-shadow: none;
+  }
+  .kOvYzm:focus-visible:not(:disabled) {
+    box-shadow: none;
+  }
+  .kOvYzm:disabled {
+    box-shadow: none;
+    background-color: var(--button-invisible-bgColor-disabled, transparent);
+  }
+  .kOvYzm[data-inactive]:not([disabled]):focus-visible {
+    box-shadow: none;
+  }
+  .ggSvLP {
+    background-color: transparent;
+  }
+  .ggSvLP, .ggSvLP:focus:not(:disabled) {
+    box-shadow: none;
+  }
+  .ggSvLP:focus-visible:not(:disabled) {
+    box-shadow: none;
+  }
+  .ggSvLP:disabled {
+    box-shadow: none;
+    background-color: var(--button-invisible-bgColor-disabled, transparent);
+  }
+  .ggSvLP[data-inactive]:not([disabled]):focus-visible {
+    box-shadow: none;
+  }
+  .hWlpPn::after {
+    color: var(--tooltip-fgColor, var(--fgColor-onEmphasis, var(--color-fg-on-emphasis, #181818)));
+  }
+  .gwqFqs {
+    background-color: var(--bgColor-default, var(--color-canvas-default, #181818));
+  }
+  .dwImxt, .kbCLEG {
+    background-color: transparent;
+  }
+  .dwImxt:focus:not(:disabled) {
+    box-shadow: none;
+  }
+  .dwImxt:focus-visible:not(:disabled) {
+    box-shadow: none;
+  }
+  .dwImxt .segmentedControl-content {
+    background-color: var(--controlKnob-bgColor-rest, var(--color-segmented-control-button-bg, #181818));
+  }
+  .iFTkun {
+    background-color: transparent;
+  }
+  .iFTkun:focus:not(:disabled) {
+    box-shadow: none;
+  }
+  .iFTkun:focus-visible:not(:disabled) {
+    box-shadow: none;
+  }
+  .bHmvop, .iFTkun .segmentedControl-content {
+    background-color: transparent;
+  }
+  .bHmvop:focus:not(:disabled) {
+    box-shadow: none;
+  }
+  .bHmvop:focus-visible:not(:disabled) {
+    box-shadow: none;
+  }
+  .bHmvop .segmentedControl-content {
+    background-color: transparent;
+  }
   /* end github.com rules */
   body, body.bg-gray {
     color: var(--ghd-body-color);
diff --git a/src/main.css b/src/main.css
index 1de0f9e4e..9d1b0bdb2 100644
--- a/src/main.css
+++ b/src/main.css
@@ -92,6 +92,9 @@
   .text-mono, .kKFNhh, .Link--secondary {
     color: #aaa !important;
   }
+  table[class*="DiffLines-module"], div[data-diff-anchor], #comments .border {
+    background: #181818;
+  }
   /* remove frontpage background */
   .application-main > .color-bg-default, .feed-background {
     background: transparent !important;