Improve checkboxes in the default editor theme

editor/icons/icon_GUI_checked.svg

@@ -1,3 +1 @@
-<svg width="16" height="16" version="1.1" viewBox="0 0 16 15.999999" xmlns="http://www.w3.org/2000/svg">
-<path d="m4 2c-1.1046 0-2 0.89543-2 2v8c0 1.1046 0.89543 2 2 2h8c1.1046 0 2-0.89543 2-2v-8c0-1.1046-0.89543-2-2-2h-8zm7.293 2.293l1.4141 1.4141-6.707 6.707-2.707-2.707 1.4141-1.4141 1.293 1.293 5.293-5.293z" fill="#e0e0e0" fill-opacity=".78431"/>
-</svg>
+<svg height="16" viewBox="0 0 16 15.999999" width="16" xmlns="http://www.w3.org/2000/svg"><g fill="#e0e0e0"><path d="m3.3333333 1c-1.2887 0-2.3333333 1.0446683-2.3333333 2.3333333v9.3333337c0 1.2887 1.0446683 2.333333 2.3333333 2.333333h9.3333337c1.2887 0 2.333333-1.044668 2.333333-2.333333v-9.3333337c0-1.2887-1.044668-2.3333333-2.333333-2.3333333z" fill-opacity=".188235" stroke-width="1.166667"/><path d="m11.500773 3.7343508-5.6117507 5.6117502-1.7045017-1.6814543-1.4992276 1.4992276 3.2037293 3.1806817 7.1109777-7.1109775z" stroke-width="1.060227"/></g></svg>

editor/icons/icon_GUI_radio_checked.svg

@@ -1,6 +1 @@
-<svg width="16" height="16" version="1.1" viewBox="0 0 16 15.999999" xmlns="http://www.w3.org/2000/svg">
-<g transform="translate(0 -1036.4)">
-<circle cx="8" cy="1044.4" r="5" fill="none" stroke="#e0e0e0" stroke-linecap="round" stroke-linejoin="round" stroke-opacity=".78431" stroke-width="2"/>
-<circle cx="8" cy="1044.4" r="3" fill="#e0e0e0" fill-opacity=".78431"/>
-</g>
-</svg>
+<svg height="16" viewBox="0 0 16 15.999999" width="16" xmlns="http://www.w3.org/2000/svg"><g fill="#e0e0e0"><path d="m15 8a7 7 0 0 1 -7 7 7 7 0 0 1 -7-7 7 7 0 0 1 7-7 7 7 0 0 1 7 7" fill-opacity=".188235" stroke-width="2.333333"/><path d="m12 8a4 4 0 0 1 -4 4 4 4 0 0 1 -4-4 4 4 0 0 1 4-4 4 4 0 0 1 4 4" stroke-width="1.333333"/></g></svg>

editor/icons/icon_GUI_radio_unchecked.svg

@@ -1,5 +1 @@
-<svg width="16" height="16" version="1.1" viewBox="0 0 16 15.999999" xmlns="http://www.w3.org/2000/svg">
-<g transform="translate(0 -1036.4)">
-<circle cx="8" cy="1044.4" r="5" fill="none" stroke="#e0e0e0" stroke-linecap="round" stroke-linejoin="round" stroke-opacity=".78431" stroke-width="2"/>
-</g>
-</svg>
+<svg height="16" viewBox="0 0 16 15.999999" width="16" xmlns="http://www.w3.org/2000/svg"><path d="m15 8a7 7 0 0 1 -7 7 7 7 0 0 1 -7-7 7 7 0 0 1 7-7 7 7 0 0 1 7 7" fill="#e0e0e0" fill-opacity=".188235" stroke-width="2.333333"/></svg>

editor/icons/icon_GUI_unchecked.svg

@@ -1,3 +1 @@
-<svg width="16" height="16" version="1.1" viewBox="0 0 16 15.999999" xmlns="http://www.w3.org/2000/svg">
-<path d="m4 2a2 2 0 0 0 -2 2v8a2 2 0 0 0 2 2h8a2 2 0 0 0 2 -2v-8a2 2 0 0 0 -2 -2h-8zm0.80078 2h6.3984a0.8 0.8 0 0 1 0.80078 0.80078v6.3984a0.8 0.8 0 0 1 -0.80078 0.80078h-6.3984a0.8 0.8 0 0 1 -0.80078 -0.80078v-6.3984a0.8 0.8 0 0 1 0.80078 -0.80078z" fill="#e0e0e0" fill-opacity=".78431"/>
-</svg>
+<svg height="16" viewBox="0 0 16 15.999999" width="16" xmlns="http://www.w3.org/2000/svg"><path d="m3.3333333 1c-1.2887 0-2.3333333 1.0446683-2.3333333 2.3333333v9.3333337c0 1.2887 1.0446683 2.333333 2.3333333 2.333333h9.3333337c1.2887 0 2.333333-1.044668 2.333333-2.333333v-9.3333337c0-1.2887-1.044668-2.3333333-2.333333-2.3333333z" fill="#e0e0e0" fill-opacity=".188235" stroke-width="1.166667"/></svg>