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+++ b/devtools/client/responsive.html/images/screenshot.svg
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-<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16" fill="#0b0b0b">
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
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-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" fill="#0b0b0b">
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-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" fill="#0b0b0b">
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-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" fill="#0b0b0b">
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-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" fill="#0b0b0b">
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+++ b/devtools/client/themes/images/debugger-step-in.svg
@@ -1,6 +1,6 @@
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    - License, v. 2.0. If a copy of the MPL was not distributed with this
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
+<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="context-fill #0b0b0b">
   <path d="M1.5 14.042h4.095a.5.5 0 0 0 0-1H1.5a.5.5 0 1 0 0 1zM7.5 3v6.983L4.364 6.657a.5.5 0 0 0-.728.686l4 4.243a.51.51 0 0 0 .021.02.5.5 0 0 0 .71-.024l3.997-4.239a.5.5 0 1 0-.728-.686L8.5 9.983V2.5a.5.5 0 0 0-.536-.5H1.536C1.24 2 1 2.224 1 2.5s.24.5.536.5H7.5zM10.5 14.042h4.095a.5.5 0 0 0 0-1H10.5a.5.5 0 1 0 0 1z"/>
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--- a/devtools/client/themes/images/debugger-step-out.svg
+++ b/devtools/client/themes/images/debugger-step-out.svg
@@ -1,6 +1,6 @@
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    - License, v. 2.0. If a copy of the MPL was not distributed with this
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
+<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="context-fill #0b0b0b">
   <path d="M5 13.5H1a.5.5 0 1 0 0 1h4a.5.5 0 1 0 0-1zM12 13.5H8a.5.5 0 1 0 0 1h4a.5.5 0 1 0 0-1zM6.11 5.012A.427.427 0 0 1 6.21 5h7.083L9.646 1.354a.5.5 0 1 1 .708-.708l4.5 4.5a.498.498 0 0 1 0 .708l-4.5 4.5a.5.5 0 0 1-.708-.708L13.293 6H6.5v5.5a.5.5 0 1 1-1 0v-6a.5.5 0 0 1 .61-.488z"/>
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--- a/devtools/client/themes/images/debugger-step-over.svg
+++ b/devtools/client/themes/images/debugger-step-over.svg
@@ -1,7 +1,7 @@
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    - License, v. 2.0. If a copy of the MPL was not distributed with this
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
+<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="context-fill #0b0b0b">
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--- a/devtools/client/themes/images/debugger-toggleBreakpoints.svg
+++ b/devtools/client/themes/images/debugger-toggleBreakpoints.svg
@@ -1,6 +1,6 @@
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    - License, v. 2.0. If a copy of the MPL was not distributed with this
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-<svg width="32" height="16" viewBox="0 0 32 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
+<svg width="32" height="16" viewBox="0 0 32 16" xmlns="http://www.w3.org/2000/svg" fill="context-fill #0b0b0b">
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--- a/devtools/client/themes/images/diff.svg
+++ b/devtools/client/themes/images/diff.svg
@@ -1,9 +1,9 @@
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    - License, v. 2.0. If a copy of the MPL was not distributed with this
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
+<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="context-fill #0b0b0b">
   <path d="M6 13A5 5 0 1 0 6 3a5 5 0 0 0 0 10zm0-.91a4.09 4.09 0 1 1 0-8.18 4.09 4.09 0 0 1 0 8.18z"/>
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--- a/devtools/client/themes/images/dock-bottom.svg
+++ b/devtools/client/themes/images/dock-bottom.svg
@@ -1,6 +1,6 @@
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    - License, v. 2.0. If a copy of the MPL was not distributed with this
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
+<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="context-fill #0b0b0b">
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--- a/devtools/client/themes/images/dock-side.svg
+++ b/devtools/client/themes/images/dock-side.svg
@@ -1,3 +1,3 @@
-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
+<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="context-fill #0b0b0b">
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--- a/devtools/client/themes/images/dock-undock.svg
+++ b/devtools/client/themes/images/dock-undock.svg
@@ -1,8 +1,8 @@
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    - License, v. 2.0. If a copy of the MPL was not distributed with this
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
+<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="context-fill #0b0b0b">
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--- a/devtools/client/themes/images/filetypes/globe.svg
+++ b/devtools/client/themes/images/filetypes/globe.svg
@@ -1,7 +1,7 @@
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    - License, v. 2.0. If a copy of the MPL was not distributed with this
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
+<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="context-fill #0b0b0b">
   <path d="M8.507 3.508l-1.978.003-.107.107v1.334l.848.891.455.031.107-.107v-.57l.75-.705.032-.877zM11.675 8.811l-1.389-1.348h-1.49l-.52.476-.032 1.023.665.708 1.22.032-.107-.107v1.108l.897.942.29.031.108-.107v-1.066l.39-.345.03-.855-.107.107h.24l.377-.334v-.151l-.116-.114-.531-.031z"/>
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--- a/devtools/client/themes/images/filter.svg
+++ b/devtools/client/themes/images/filter.svg
@@ -1,12 +1,12 @@
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    - License, v. 2.0. If a copy of the MPL was not distributed with this
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-<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16" fill="#0b0b0b">
+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16" fill="context-fill #0b0b0b">
   <style>
     /* Use a fill that's visible on both light and dark themes for filter inputs */
     #filterinput:target + #icon {
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   <g id="filterinput"/>
   <g id="icon">

--- a/devtools/client/themes/images/geometry-editor.svg
+++ b/devtools/client/themes/images/geometry-editor.svg
@@ -1,7 +1,7 @@
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    - License, v. 2.0. If a copy of the MPL was not distributed with this
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
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\ No newline at end of file

--- a/devtools/client/themes/images/import.svg
+++ b/devtools/client/themes/images/import.svg
@@ -1,8 +1,8 @@
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    - License, v. 2.0. If a copy of the MPL was not distributed with this
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
+<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="context-fill #0b0b0b">
   <path d="M7.864 1.417c-.123-.13-.305-.185-.48-.144-.173.04-.312.172-.363.343-.05.17-.007.357.116.487l4 4.243c.19.2.506.21.707.02.2-.188.21-.505.02-.706l-4-4.243z"/>
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--- a/devtools/client/themes/images/item-toggle.svg
+++ b/devtools/client/themes/images/item-toggle.svg
@@ -1,7 +1,7 @@
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
+<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="context-fill #0b0b0b">
   <circle cx="8" cy="8.5" r="1.5"/>
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--- a/devtools/client/themes/images/pane-collapse.svg
+++ b/devtools/client/themes/images/pane-collapse.svg
@@ -1,7 +1,7 @@
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    - License, v. 2.0. If a copy of the MPL was not distributed with this
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--- a/devtools/client/themes/images/pause.svg
+++ b/devtools/client/themes/images/pause.svg
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    - License, v. 2.0. If a copy of the MPL was not distributed with this
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
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+++ b/devtools/client/themes/images/performance-details-call-tree.svg
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    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
 <svg xmlns="http://www.w3.org/2000/svg"
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+     fill="context-fill #0b0b0b">
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--- a/devtools/client/themes/images/performance-details-flamegraph.svg
+++ b/devtools/client/themes/images/performance-details-flamegraph.svg
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    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
 <svg xmlns="http://www.w3.org/2000/svg"
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--- a/devtools/client/themes/images/performance-details-waterfall.svg
+++ b/devtools/client/themes/images/performance-details-waterfall.svg
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    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
 <svg xmlns="http://www.w3.org/2000/svg"
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--- a/devtools/client/themes/images/play.svg
+++ b/devtools/client/themes/images/play.svg
@@ -1,6 +1,6 @@
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    - License, v. 2.0. If a copy of the MPL was not distributed with this
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
+<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="context-fill #0b0b0b">
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--- a/devtools/client/themes/images/power.svg
+++ b/devtools/client/themes/images/power.svg
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    - License, v. 2.0. If a copy of the MPL was not distributed with this
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
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--- a/devtools/client/themes/images/profiler-stopwatch.svg
+++ b/devtools/client/themes/images/profiler-stopwatch.svg
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
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+++ b/devtools/client/themes/images/pseudo-class.svg
@@ -1,7 +1,7 @@
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-<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16" fill="#0b0b0b">
+<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 16 16" fill="context-fill #0b0b0b">
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+++ b/devtools/client/themes/images/rewind.svg
@@ -1,6 +1,6 @@
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
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--- a/devtools/client/themes/images/tool-canvas.svg
+++ b/devtools/client/themes/images/tool-canvas.svg
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    - License, v. 2.0. If a copy of the MPL was not distributed with this
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
+<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="context-fill #0b0b0b">
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+++ b/devtools/client/themes/images/tool-debugger.svg
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
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--- a/devtools/client/themes/images/tool-inspector.svg
+++ b/devtools/client/themes/images/tool-inspector.svg
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
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+++ b/devtools/client/themes/images/tool-memory.svg
@@ -1,10 +1,10 @@
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
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+++ b/devtools/client/themes/images/tool-scratchpad.svg
@@ -1,7 +1,7 @@
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    - License, v. 2.0. If a copy of the MPL was not distributed with this
    - file, You can obtain one at http://mozilla.org/MPL/2.0/. -->
-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
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-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" fill="#0b0b0b">
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    - License, v. 2.0. If a copy of the MPL was not distributed with this
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--- a/devtools/client/themes/images/tool-webconsole.svg
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