Move images (#1372)

* Move mixed/img/ to images/

* Move bg/img/ to images/

62 files changed, 55 insertions, 279 deletions

diff --git a/ext/mixed/css/display.css b/ext/mixed/css/display.css
index 6e250aa5..476b2c35 100644
--- a/ext/mixed/css/display.css
+++ b/ext/mixed/css/display.css
@@ -625,19 +625,19 @@ button.action-button::before {
     background-size: contain;
 }
 button.action-button[data-icon=view-note]::before {
-    background-image: url('/mixed/img/view-note.svg');
+    background-image: url('/images/view-note.svg');
 }
 button.action-button[data-icon=add-term-kanji]::before {
-    background-image: url('/mixed/img/add-term-kanji.svg');
+    background-image: url('/images/add-term-kanji.svg');
 }
 button.action-button[data-icon=add-term-kana]::before {
-    background-image: url('/mixed/img/add-term-kana.svg');
+    background-image: url('/images/add-term-kana.svg');
 }
 button.action-button[data-icon=play-audio]::before {
-    background-image: url('/mixed/img/play-audio.svg');
+    background-image: url('/images/play-audio.svg');
 }
 button.action-button[data-icon=source-term]::before {
-    background-image: url('/mixed/img/source-term.svg');
+    background-image: url('/images/source-term.svg');
 }
 .entry[data-type=term][data-expression-multi=true] .actions>button.action-button.action-play-audio {
     display: none;
@@ -903,12 +903,12 @@ button.action-button[data-icon=source-term]::before {
     mask-position: center center;
     mask-mode: alpha;
     mask-size: contain;
-    mask-image: url(/mixed/img/material-right-arrow.svg);
+    mask-image: url(/images/material-right-arrow.svg);
     -webkit-mask-repeat: no-repeat;
     -webkit-mask-position: center center;
     -webkit-mask-mode: alpha;
     -webkit-mask-size: contain;
-    -webkit-mask-image: url(/mixed/img/material-right-arrow.svg);
+    -webkit-mask-image: url(/images/material-right-arrow.svg);
 }
 .term-expression:not(:first-of-type) .term-expression-current-indicator,
 :root:not([data-popup-current-indicator-mode=triangle]) .term-expression-current-indicator {
@@ -935,7 +935,7 @@ button.action-button[data-icon=source-term]::before {
     background-color: transparent;
     background-repeat: no-repeat;
     background-size: contain;
-    background-image: url('/mixed/img/entry-current.svg');
+    background-image: url('/images/entry-current.svg');
 }
 
 
diff --git a/ext/mixed/css/material.css b/ext/mixed/css/material.css
index 365b15ad..1177baa1 100644
--- a/ext/mixed/css/material.css
+++ b/ext/mixed/css/material.css
@@ -183,46 +183,46 @@
     mask-image: var(--icon-image);
 }
 .icon[data-icon=none]                    { --icon-image: linear-gradient(transparent, transparent); }
-.icon[data-icon=profile]                 { --icon-image: url(/mixed/img/profile.svg); }
-.icon[data-icon=cog]                     { --icon-image: url(/mixed/img/cog.svg); }
-.icon[data-icon=palette]                 { --icon-image: url(/mixed/img/palette.svg); }
-.icon[data-icon=popup]                   { --icon-image: url(/mixed/img/popup.svg); }
-.icon[data-icon=speaker]                 { --icon-image: url(/mixed/img/speaker.svg); }
-.icon[data-icon=scanning]                { --icon-image: url(/mixed/img/scanning.svg); }
-.icon[data-icon=text-parsing]            { --icon-image: url(/mixed/img/text-parsing.svg); }
-.icon[data-icon=translation]             { --icon-image: url(/mixed/img/translation.svg); }
-.icon[data-icon=book]                    { --icon-image: url(/mixed/img/book.svg); }
-.icon[data-icon=note-card]               { --icon-image: url(/mixed/img/note-card.svg); }
-.icon[data-icon=keyboard]                { --icon-image: url(/mixed/img/keyboard.svg); }
-.icon[data-icon=backup]                  { --icon-image: url(/mixed/img/backup.svg); }
-.icon[data-icon=lock]                    { --icon-image: url(/mixed/img/lock.svg); }
-.icon[data-icon=question-mark]           { --icon-image: url(/mixed/img/question-mark.svg); }
-.icon[data-icon=popup-size]              { --icon-image: url(/mixed/img/popup-size.svg); }
-.icon[data-icon=hamburger-menu]          { --icon-image: url(/mixed/img/hamburger-menu.svg); }
-.icon[data-icon=kebab-menu]              { --icon-image: url(/mixed/img/kebab-menu.svg); }
-.icon[data-icon=mouse]                   { --icon-image: url(/mixed/img/mouse.svg); }
-.icon[data-icon=exclamation-point-short] { --icon-image: url(/mixed/img/exclamation-point-short.svg); }
-.icon[data-icon=magnifying-glass]        { --icon-image: url(/mixed/img/magnifying-glass.svg); }
-.icon[data-icon=collapse]                { --icon-image: url(/mixed/img/collapse.svg); }
-.icon[data-icon=expand]                  { --icon-image: url(/mixed/img/expand.svg); }
-.icon[data-icon=window]                  { --icon-image: url(/mixed/img/window.svg); }
-.icon[data-icon=cross]                   { --icon-image: url(/mixed/img/cross.svg); }
-.icon[data-icon=checkmark]               { --icon-image: url(/mixed/img/checkmark.svg); }
-.icon[data-icon=sentence-parsing]        { --icon-image: url(/mixed/img/sentence-parsing.svg); }
-.icon[data-icon=question-mark]           { --icon-image: url(/mixed/img/question-mark.svg); }
-.icon[data-icon=question-mark-circle]    { --icon-image: url(/mixed/img/question-mark-circle.svg); }
-.icon[data-icon=question-mark-thick]     { --icon-image: url(/mixed/img/question-mark-thick.svg); }
-.icon[data-icon=left-chevron]            { --icon-image: url(/mixed/img/left-chevron.svg); }
-.icon[data-icon=right-chevron]           { --icon-image: url(/mixed/img/right-chevron.svg); }
-.icon[data-icon=plus-thick]              { --icon-image: url(/mixed/img/plus-thick.svg); }
-.icon[data-icon=clipboard]               { --icon-image: url(/mixed/img/clipboard.svg); }
-.icon[data-icon=key]                     { --icon-image: url(/mixed/img/key.svg); }
+.icon[data-icon=profile]                 { --icon-image: url(/images/profile.svg); }
+.icon[data-icon=cog]                     { --icon-image: url(/images/cog.svg); }
+.icon[data-icon=palette]                 { --icon-image: url(/images/palette.svg); }
+.icon[data-icon=popup]                   { --icon-image: url(/images/popup.svg); }
+.icon[data-icon=speaker]                 { --icon-image: url(/images/speaker.svg); }
+.icon[data-icon=scanning]                { --icon-image: url(/images/scanning.svg); }
+.icon[data-icon=text-parsing]            { --icon-image: url(/images/text-parsing.svg); }
+.icon[data-icon=translation]             { --icon-image: url(/images/translation.svg); }
+.icon[data-icon=book]                    { --icon-image: url(/images/book.svg); }
+.icon[data-icon=note-card]               { --icon-image: url(/images/note-card.svg); }
+.icon[data-icon=keyboard]                { --icon-image: url(/images/keyboard.svg); }
+.icon[data-icon=backup]                  { --icon-image: url(/images/backup.svg); }
+.icon[data-icon=lock]                    { --icon-image: url(/images/lock.svg); }
+.icon[data-icon=question-mark]           { --icon-image: url(/images/question-mark.svg); }
+.icon[data-icon=popup-size]              { --icon-image: url(/images/popup-size.svg); }
+.icon[data-icon=hamburger-menu]          { --icon-image: url(/images/hamburger-menu.svg); }
+.icon[data-icon=kebab-menu]              { --icon-image: url(/images/kebab-menu.svg); }
+.icon[data-icon=mouse]                   { --icon-image: url(/images/mouse.svg); }
+.icon[data-icon=exclamation-point-short] { --icon-image: url(/images/exclamation-point-short.svg); }
+.icon[data-icon=magnifying-glass]        { --icon-image: url(/images/magnifying-glass.svg); }
+.icon[data-icon=collapse]                { --icon-image: url(/images/collapse.svg); }
+.icon[data-icon=expand]                  { --icon-image: url(/images/expand.svg); }
+.icon[data-icon=window]                  { --icon-image: url(/images/window.svg); }
+.icon[data-icon=cross]                   { --icon-image: url(/images/cross.svg); }
+.icon[data-icon=checkmark]               { --icon-image: url(/images/checkmark.svg); }
+.icon[data-icon=sentence-parsing]        { --icon-image: url(/images/sentence-parsing.svg); }
+.icon[data-icon=question-mark]           { --icon-image: url(/images/question-mark.svg); }
+.icon[data-icon=question-mark-circle]    { --icon-image: url(/images/question-mark-circle.svg); }
+.icon[data-icon=question-mark-thick]     { --icon-image: url(/images/question-mark-thick.svg); }
+.icon[data-icon=left-chevron]            { --icon-image: url(/images/left-chevron.svg); }
+.icon[data-icon=right-chevron]           { --icon-image: url(/images/right-chevron.svg); }
+.icon[data-icon=plus-thick]              { --icon-image: url(/images/plus-thick.svg); }
+.icon[data-icon=clipboard]               { --icon-image: url(/images/clipboard.svg); }
+.icon[data-icon=key]                     { --icon-image: url(/images/key.svg); }
 .icon[data-icon=material-down-arrow] {
-    --icon-image: url(/mixed/img/material-down-arrow.svg);
+    --icon-image: url(/images/material-down-arrow.svg);
     --icon-size: var(--material-arrow-dimension2) var(--material-arrow-dimension1);
 }
 .icon[data-icon=material-right-arrow] {
-    --icon-image: url(/mixed/img/material-right-arrow.svg);
+    --icon-image: url(/images/material-right-arrow.svg);
     --icon-size: var(--material-arrow-dimension1) var(--material-arrow-dimension2);
 }
 
@@ -277,20 +277,20 @@ label.checkbox {
     transition: opacity var(--animation-duration) linear, background-color var(--animation-duration) linear;
 }
 .checkbox-fill {
-    mask-image: url(/mixed/img/checkbox-fill.svg);
-    -webkit-mask-image: url(/mixed/img/checkbox-fill.svg);
+    mask-image: url(/images/checkbox-fill.svg);
+    -webkit-mask-image: url(/images/checkbox-fill.svg);
     background-color: var(--checkbox-unchecked-color);
     opacity: 0;
 }
 .checkbox-border {
-    mask-image: url(/mixed/img/checkbox-border.svg);
-    -webkit-mask-image: url(/mixed/img/checkbox-border.svg);
+    mask-image: url(/images/checkbox-border.svg);
+    -webkit-mask-image: url(/images/checkbox-border.svg);
     background-color: var(--checkbox-unchecked-color);
     opacity: 1;
 }
 .checkbox-check {
-    mask-image: url(/mixed/img/checkbox-check.svg);
-    -webkit-mask-image: url(/mixed/img/checkbox-check.svg);
+    mask-image: url(/images/checkbox-check.svg);
+    -webkit-mask-image: url(/images/checkbox-check.svg);
     background-color: var(--checkbox-check-color);
     opacity: 0;
 }
@@ -482,12 +482,12 @@ label.radio {
     -webkit-mask-size: var(--radio-size) var(--radio-size);
 }
 .radio-border {
-    mask-image: url(/mixed/img/radio-button.svg);
-    -webkit-mask-image: url(/mixed/img/radio-button.svg);
+    mask-image: url(/images/radio-button.svg);
+    -webkit-mask-image: url(/images/radio-button.svg);
 }
 .radio-dot {
-    mask-image: url(/mixed/img/radio-button-dot.svg);
-    -webkit-mask-image: url(/mixed/img/radio-button-dot.svg);
+    mask-image: url(/images/radio-button-dot.svg);
+    -webkit-mask-image: url(/images/radio-button-dot.svg);
     opacity: 1;
     transform: none;
     transition:
@@ -571,7 +571,7 @@ select {
     appearance: none;
     -moz-appearance: none;
     -webkit-appearance: none;
-    background-image: url(/mixed/img/material-down-arrow.svg);
+    background-image: url(/images/material-down-arrow.svg);
     background-repeat: no-repeat;
     background-position: right calc(10em / var(--font-size-no-units)) center;
     background-color: var(--input-background-color);
diff --git a/ext/mixed/img/add-term-kana.svg b/ext/mixed/img/add-term-kana.svg
deleted file mode 100644
index bb964476..00000000
--- a/ext/mixed/img/add-term-kana.svg
+++ /dev/null
@@ -1,23 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg width="16" height="16" version="1.1" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
- <defs>
-  <linearGradient id="linearGradient4719" x1="-1.7198" x2="-1.7198" y1="2.7781" y2="1.4552" gradientTransform="matrix(3.7795 0 0 3.7795 14 .5)" gradientUnits="userSpaceOnUse">
-   <stop stop-color="#8dba64" offset="0"/>
-   <stop stop-color="#b4d495" offset="1"/>
-  </linearGradient>
-  <linearGradient id="linearGradient4745-5" x1="2.1167" x2="1.4552" y1="2.3812" y2="1.7198" gradientTransform="scale(3.7795 3.7795)" gradientUnits="userSpaceOnUse">
-   <stop stop-color="#376b19" offset="0"/>
-   <stop stop-color="#81ab61" offset="1"/>
-  </linearGradient>
-  <radialGradient id="radialGradient4770-4" cx="2.1167" cy="2.1167" r=".66146" gradientTransform="matrix(2.2677 -7.9311e-7 7.9312e-7 2.2677 2.7 3.7)" gradientUnits="userSpaceOnUse">
-   <stop stop-opacity=".28986" offset="0"/>
-   <stop stop-opacity="0" offset="1"/>
-  </radialGradient>
- </defs>
- <g>
-  <circle cx="7.5" cy="8.5" r="3" fill="url(#linearGradient4719)"/>
-  <circle cx="7.5" cy="8.5" r="3" fill="none" stroke="url(#linearGradient4745-5)"/>
-  <circle cx="7.5" cy="8.5" r="1.5" fill="url(#radialGradient4770-4)"/>
-  <path d="m6 8h1v-1h1v1h1v1h-1v1h-1v-1h-1v-1" fill="#fff"/>
- </g>
-</svg>
diff --git a/ext/mixed/img/add-term-kanji.svg b/ext/mixed/img/add-term-kanji.svg
deleted file mode 100644
index 3737eaec..00000000
--- a/ext/mixed/img/add-term-kanji.svg
+++ /dev/null
@@ -1,24 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<svg width="16" height="16" version="1.1" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink">
- <defs>
-  <linearGradient id="linearGradient4582" x1="-1.7198" x2="-1.7198" y1="3.5719" y2=".79375" gradientTransform="matrix(3.7795 0 0 3.7795 14.5 -6.308e-7)" gradientUnits="userSpaceOnUse">
-   <stop stop-color="#6fb558" offset="0"/>
-   <stop stop-color="#a5db9b" offset="1"/>
-  </linearGradient>
-  <linearGradient id="linearGradient4758-7" x1="7.5406" x2="5.1594" y1="3.3073" y2=".92604" gradientTransform="matrix(3.7795 0 0 3.7795 -16 -6e-7)" gradientUnits="userSpaceOnUse">
-   <stop stop-color="#34812c" offset="0"/>
-   <stop stop-color="#87b870" offset="1"/>
-  </linearGradient>
-  <radialGradient id="radialGradient4683-3" cx="2.1167" cy="2.1167" r=".66146" gradientTransform="matrix(4.5354 8.0301e-7 -8.0301e-7 4.5354 -1.6 -1.6)" gradientUnits="userSpaceOnUse">
-   <stop stop-opacity=".28986" offset="0"/>
-   <stop stop-opacity="0" offset="1"/>
-  </radialGradient>
- </defs>
- <g>
-  <circle cx="8" cy="8" r="6.5" fill="url(#linearGradient4582)"/>
-  <circle cx="8" cy="8" r="5.75" fill="none" stroke="#fff" stroke-opacity=".50196" stroke-width="1.5"/>
-  <circle cx="8" cy="8" r="6.5" fill="none" stroke="url(#linearGradient4758-7)"/>
-  <circle cx="8" cy="8" r="3" fill="url(#radialGradient4683-3)"/>
-  <path d="m5 7h2v-2h2v2h2v2h-2v2h-2v-2h-2v-2" fill="#fff"/>
- </g>
-</svg>
diff --git a/ext/mixed/img/backup.svg b/ext/mixed/img/backup.svg
deleted file mode 100644
index 54f9e01d..00000000
--- a/ext/mixed/img/backup.svg
+++ /dev/null
@@ -1 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path d="M6 1.5v6H3.5L8 12l4.5-4.5H10v-6H6zM2 11v3.5h12V11h-1v1.5H3V11H2z" fill="#333"/></svg>
\ No newline at end of file
diff --git a/ext/mixed/img/book.svg b/ext/mixed/img/book.svg
deleted file mode 100644
index 1b785296..00000000
--- a/ext/mixed/img/book.svg
+++ /dev/null
@@ -1 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path d="M2 2.25L3.75.5H14v13l-1 1v-13H4.75l-1.04592 1H12v13H2z" fill="#333"/></svg>
\ No newline at end of file
diff --git a/ext/mixed/img/checkbox-border.svg b/ext/mixed/img/checkbox-border.svg
deleted file mode 100644
index cd117bbd..00000000
--- a/ext/mixed/img/checkbox-border.svg
+++ /dev/null
@@ -1 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path d="M2 0C.892 0 0 .892 0 2v12c0 1.108.892 2 2 2h12c1.108 0 2-.892 2-2V2c0-1.108-.892-2-2-2H2zm0 2h12v12H2V2z" fill="#000"/></svg>
\ No newline at end of file
diff --git a/ext/mixed/img/checkbox-check.svg b/ext/mixed/img/checkbox-check.svg
deleted file mode 100644
index 7e2c8f5c..00000000
--- a/ext/mixed/img/checkbox-check.svg
+++ /dev/null
@@ -1 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path d="M6.5 12.5L14 5l-1.5-1.5-6 6-3-3L2 8z"/></svg>
\ No newline at end of file
diff --git a/ext/mixed/img/checkbox-fill.svg b/ext/mixed/img/checkbox-fill.svg
deleted file mode 100644
index 19056771..00000000
--- a/ext/mixed/img/checkbox-fill.svg
+++ /dev/null
@@ -1 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path d="M1 1h14v14H1z" fill="#000"/></svg>
\ No newline at end of file
diff --git a/ext/mixed/img/checkmark.svg b/ext/mixed/img/checkmark.svg
deleted file mode 100644
index 14504166..00000000
--- a/ext/mixed/img/checkmark.svg
+++ /dev/null
@@ -1 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path d="M6.5 13l8-8-2-2-6 6-3-3-2 2z"/></svg>
\ No newline at end of file
diff --git a/ext/mixed/img/clipboard.svg b/ext/mixed/img/clipboard.svg
deleted file mode 100644
index 75545134..00000000
--- a/ext/mixed/img/clipboard.svg
+++ /dev/null
@@ -1 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path d="M8 .5c-.41421 0-.75.33579-.75.75 0 .25-.25.25-.75.25-.554 0-1 .446-1 1V3h5v-.5c0-.554-.446-1-1-1-.5 0-.75 0-.75-.25C8.75.83579 8.41421.5 8 .5zM2.5 2v13h11V2h-2.5938c.05663.15724.09375.32437.09375.5V3h1.5v11h-9V3h1.5v-.5c0-.17563.03712-.34276.09375-.5zm2 3v1h7V5zm0 2v1h7V7zm0 2v1h7V9zm0 2v1h5v-1z"/></svg>
\ No newline at end of file
diff --git a/ext/mixed/img/cog.svg b/ext/mixed/img/cog.svg
deleted file mode 100644
index 7232d25d..00000000
--- a/ext/mixed/img/cog.svg
+++ /dev/null
@@ -1 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?><svg xmlns="http://www.w3.org/2000/svg" width="16" height="16"><path d="M7 .5c-.13807 0-.26165.11066-.2754.24805l-.15624 1.55468c-.02198.21982-.2122.44631-.41992.52149a5.5035 5.5035 0 00-.4961.20703c-.19937.0951-.49501.0715-.66601-.0684l-1.2129-.99219c-.10685-.0874-.2715-.0781-.36913.0195L1.99023 3.40423c-.09763.0976-.10696.26228-.01953.36914l.99024 1.21094c.13984.17101.16424.46606.07031.66601a5.4994 5.4994 0 00-.20313.49805c-.07396.20816-.2997.398-.51953.41992l-1.56054.15625C.61066 6.73835.5 6.86193.5 7v2c0 .13807.11066.26165.24805.27539l1.55468.15625c.21982.022.4463.21219.52149.41992a5.49997 5.49997 0 00.20703.4961c.09514.19937.0715.49501-.06836.66601l-.99219 1.21289c-.08743.10686-.0781.27151.01953.36914l1.41407 1.41407c.09763.0976.26228.10696.36914.0195l1.21093-.99024c.17102-.13984.46607-.16425.66602-.0703.1626.0758.32882.14358.49805.20313.20816.074.398.2997.41992.51953l.15625 1.56055c.01374.13737.13732.24804.27539.24804h2c.13807 0 .26165-.11066.2754-.24805l.15624-1.55468c.02198-.21982.2122-.44631.41992-.52149a5.50632 5.50632 0 00.4961-.20703c.19937-.0952.49502-.0715.66601.0684l1.2129.99219c.10685.0874.2715.0781.36913-.0195l1.41407-1.41406c.09763-.0976.10696-.26229.01953-.36915l-.99024-1.21093c-.13984-.17102-.16424-.46607-.0703-.66602a5.49962 5.49962 0 00.20312-.49805c.07396-.20816.2997-.398.51953-.41992l1.56054-.15625C15.38935 9.26165 15.5 9.13807 15.5 9V7c0-.13807-.11066-.26165-.24805-.27539l-1.55468-.15625c-.21982-.022-.44631-.21219-.52149-.41992a5.50036 5.50036 0 00-.20703-.4961c-.09515-.19937-.07151-.49501.06836-.66601l.99219-1.21289c.08743-.10686.0781-.27151-.01953-.36914L12.5957 1.99023c-.09763-.0976-.26227-.10696-.36914-.0195l-1.21093.99024c-.17102.13984-.46607.16424-.66602.0703a5.4957 5.4957 0 00-.49805-.20312c-.20816-.074-.398-.29971-.41992-.51954L9.2754.74807C9.26165.61066 9.13807.5 9 .5zm1 4.75A2.75 2.75 0 0110.75 8 2.75 2.75 0 018 10.75 2.75 2.75 0 015.25 8 2.75 2.75 0 018 5.25z" fill="#333"/></svg>
\ No newline at end of file
diff --git a/ext/mixed/img/collapse.svg b/ext/mixed/img/collapse.svg
deleted file mode 100644
index 1efed703..00000000
--- a/ext/mixed/img/collapse.svg
+++ /dev/null
@@ -1 +0,0 @@
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deleted file mode 100644
index 9ea89e51..00000000
--- a/ext/mixed/img/cross.svg
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deleted file mode 100644
index abf3f76d..00000000
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diff --git a/ext/mixed/img/exclamation-point-short.svg b/ext/mixed/img/exclamation-point-short.svg
deleted file mode 100644
index 6e92c460..00000000
--- a/ext/mixed/img/exclamation-point-short.svg
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diff --git a/ext/mixed/img/expand.svg b/ext/mixed/img/expand.svg
deleted file mode 100644
index 57a2bd98..00000000
--- a/ext/mixed/img/expand.svg
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deleted file mode 100644
index 9048d205..00000000
--- a/ext/mixed/img/hamburger-menu.svg
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deleted file mode 100644
index 1a7d6a7f..00000000
--- a/ext/mixed/img/hiragana-a.svg
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diff --git a/ext/mixed/img/icon128.png b/ext/mixed/img/icon128.png
deleted file mode 100644
index c3e5ae64..00000000
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diff --git a/ext/mixed/img/icon16.png b/ext/mixed/img/icon16.png
deleted file mode 100644
index 10dab78a..00000000
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deleted file mode 100644
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deleted file mode 100644
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deleted file mode 100644
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deleted file mode 100644
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diff --git a/ext/mixed/img/icon64.png b/ext/mixed/img/icon64.png
deleted file mode 100644
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diff --git a/ext/mixed/img/kebab-menu.svg b/ext/mixed/img/kebab-menu.svg
deleted file mode 100644
index 6df6a177..00000000
--- a/ext/mixed/img/kebab-menu.svg
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diff --git a/ext/mixed/img/key.svg b/ext/mixed/img/key.svg
deleted file mode 100644
index 738e07a3..00000000
--- a/ext/mixed/img/key.svg
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diff --git a/ext/mixed/img/keyboard.svg b/ext/mixed/img/keyboard.svg
deleted file mode 100644
index aac85b1c..00000000
--- a/ext/mixed/img/keyboard.svg
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deleted file mode 100644
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diff --git a/ext/mixed/img/lock.svg b/ext/mixed/img/lock.svg
deleted file mode 100644
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--- a/ext/mixed/img/lock.svg
+++ /dev/null
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diff --git a/ext/mixed/img/magnifying-glass.svg b/ext/mixed/img/magnifying-glass.svg
deleted file mode 100644
index a8367d8d..00000000
--- a/ext/mixed/img/magnifying-glass.svg
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deleted file mode 100644
index dd60c48d..00000000
--- a/ext/mixed/img/material-down-arrow.svg
+++ /dev/null
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diff --git a/ext/mixed/img/material-right-arrow.svg b/ext/mixed/img/material-right-arrow.svg
deleted file mode 100644
index 15be03c0..00000000
--- a/ext/mixed/img/material-right-arrow.svg
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diff --git a/ext/mixed/img/mouse.svg b/ext/mixed/img/mouse.svg
deleted file mode 100644
index 80c400e6..00000000
--- a/ext/mixed/img/mouse.svg
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deleted file mode 100644
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deleted file mode 100644
index 4a615ef2..00000000
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deleted file mode 100644
index 1d5e2d9c..00000000
--- a/ext/mixed/img/play-audio.svg
+++ /dev/null
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diff --git a/ext/mixed/img/plus-circle-large.svg b/ext/mixed/img/plus-circle-large.svg
deleted file mode 100644
index b034a723..00000000
--- a/ext/mixed/img/plus-circle-large.svg
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deleted file mode 100644
index 1ddc2b72..00000000
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diff --git a/ext/mixed/img/plus-thick.svg b/ext/mixed/img/plus-thick.svg
deleted file mode 100644
index 6b1b5c5a..00000000
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diff --git a/ext/mixed/img/popup-size.svg b/ext/mixed/img/popup-size.svg
deleted file mode 100644
index 220409db..00000000
--- a/ext/mixed/img/popup-size.svg
+++ /dev/null
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diff --git a/ext/mixed/img/popup.svg b/ext/mixed/img/popup.svg
deleted file mode 100644
index 77217cd0..00000000
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diff --git a/ext/mixed/img/profile.svg b/ext/mixed/img/profile.svg
deleted file mode 100644
index 52a1363d..00000000
--- a/ext/mixed/img/profile.svg
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diff --git a/ext/mixed/img/question-mark-circle.svg b/ext/mixed/img/question-mark-circle.svg
deleted file mode 100644
index 0076f7cd..00000000
--- a/ext/mixed/img/question-mark-circle.svg
+++ /dev/null
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diff --git a/ext/mixed/img/question-mark-thick.svg b/ext/mixed/img/question-mark-thick.svg
deleted file mode 100644
index 7f2214a6..00000000
--- a/ext/mixed/img/question-mark-thick.svg
+++ /dev/null
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diff --git a/ext/mixed/img/question-mark.svg b/ext/mixed/img/question-mark.svg
deleted file mode 100644
index bc3b9a1c..00000000
--- a/ext/mixed/img/question-mark.svg
+++ /dev/null
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diff --git a/ext/mixed/img/radio-button-dot.svg b/ext/mixed/img/radio-button-dot.svg
deleted file mode 100644
index b1aebe27..00000000
--- a/ext/mixed/img/radio-button-dot.svg
+++ /dev/null
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diff --git a/ext/mixed/img/radio-button.svg b/ext/mixed/img/radio-button.svg
deleted file mode 100644
index 8c655069..00000000
--- a/ext/mixed/img/radio-button.svg
+++ /dev/null
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diff --git a/ext/mixed/img/right-chevron.svg b/ext/mixed/img/right-chevron.svg
deleted file mode 100644
index e210057b..00000000
--- a/ext/mixed/img/right-chevron.svg
+++ /dev/null
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diff --git a/ext/mixed/img/scanning.svg b/ext/mixed/img/scanning.svg
deleted file mode 100644
index 9ac16c83..00000000
--- a/ext/mixed/img/scanning.svg
+++ /dev/null
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diff --git a/ext/mixed/img/sentence-parsing.svg b/ext/mixed/img/sentence-parsing.svg
deleted file mode 100644
index 7c883175..00000000
--- a/ext/mixed/img/sentence-parsing.svg
+++ /dev/null
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diff --git a/ext/mixed/img/source-term.svg b/ext/mixed/img/source-term.svg
deleted file mode 100644
index a70938f2..00000000
--- a/ext/mixed/img/source-term.svg
+++ /dev/null
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diff --git a/ext/mixed/img/speaker.svg b/ext/mixed/img/speaker.svg
deleted file mode 100644
index e0a4e798..00000000
--- a/ext/mixed/img/speaker.svg
+++ /dev/null
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diff --git a/ext/mixed/img/spinner.gif b/ext/mixed/img/spinner.gif
deleted file mode 100644
index 8ed30cb6..00000000
--- a/ext/mixed/img/spinner.gif
+++ /dev/null
diff --git a/ext/mixed/img/spinner.svg b/ext/mixed/img/spinner.svg
deleted file mode 100644
index ec19ba83..00000000
--- a/ext/mixed/img/spinner.svg
+++ /dev/null
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diff --git a/ext/mixed/img/text-parsing.svg b/ext/mixed/img/text-parsing.svg
deleted file mode 100644
index dfa88af8..00000000
--- a/ext/mixed/img/text-parsing.svg
+++ /dev/null
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diff --git a/ext/mixed/img/translation.svg b/ext/mixed/img/translation.svg
deleted file mode 100644
index fdb98b1d..00000000
--- a/ext/mixed/img/translation.svg
+++ /dev/null
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diff --git a/ext/mixed/img/up-arrow.svg b/ext/mixed/img/up-arrow.svg
deleted file mode 100644
index d5dea78c..00000000
--- a/ext/mixed/img/up-arrow.svg
+++ /dev/null
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diff --git a/ext/mixed/img/view-note.svg b/ext/mixed/img/view-note.svg
deleted file mode 100644
index 3e6f1dce..00000000
--- a/ext/mixed/img/view-note.svg
+++ /dev/null
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diff --git a/ext/mixed/img/window.svg b/ext/mixed/img/window.svg
deleted file mode 100644
index d0d3b0fb..00000000
--- a/ext/mixed/img/window.svg
+++ /dev/null
@@ -1 +0,0 @@
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diff --git a/ext/mixed/img/yomichan-icon.svg b/ext/mixed/img/yomichan-icon.svg
deleted file mode 100644
index f15ab0aa..00000000
--- a/ext/mixed/img/yomichan-icon.svg
+++ /dev/null
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