Will use light theme icon file and CSS style

src/vs/workbench/parts/debug/browser/media/breakpoint-hint.svg

-<svg width="16" height="16" viewBox="0 0 16 16" xmlns="http://www.w3.org/2000/svg"><g fill="none" fill-rule="evenodd" fill-opacity="0.4"><g fill="#E51400"><circle cx="8" cy="8" r="5"/></g></g></svg>
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src/vs/workbench/parts/debug/browser/media/breakpoints-activate-inverse.svg

-<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" enable-background="new 0 0 16 16" height="16" width="16"><path fill="#1E1E1E" d="M16 5.5c0-3-2.5-5.5-5.5-5.5C7.6 0 5.3 2.2 5 5c-2.8.2-5 2.6-5 5.5 0 3 2.5 5.5 5.5 5.5 2.9 0 5.2-2.2 5.5-5 2.8-.3 5-2.6 5-5.5z"/><g fill="#C5C5C5"><path d="M10.5 1C8.2 1 6.3 2.8 6 5c.3 0 .7.1 1 .2C7.2 3.4 8.7 2 10.5 2 12.4 2 14 3.6 14 5.5c0 1.8-1.4 3.3-3.2 3.5.1.3.2.6.2 1 2.3-.2 4-2.1 4-4.5C15 3 13 1 10.5 1z"/><circle cx="5.5" cy="10.5" r="4.5"/></g></svg>
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