A vintage terminal color scheme for Firebug

Terminal Green

.panelNode-html, .panelNode-stylesheet, .panelNode-css, .panelNode-html .sourceLine {
    background: #000 !important;
}

.panelNode-html *, .panelNode-stylesheet *, .panelNode-css * {
    font-family: 'Source Code Pro' !important;
}

.objectLink div {
    font-family: sans-serif !important;
}

.highlightOpen .nodeLabel {
    background: transparent !important;
}

.panelNode-html .highlighted .nodeLabel, .panelNode-html .mutated, .panelNode-html .mutated .nodeLabel {
    background: #333 !important;
    border-color: #00FF00 !important;
}

.panelNode-html .sourceLine {
    border-right: dotted 1px #00FF00!important;
}

.panelNode-html .nodeTag {
    color: #00FF00 !important;
}

.panelNode-html .nodeLabelBox, .panelNode-html .nodeCloseLabel, .panelNode-html .textNodeBox, .panelNode-html .nodeText, .panelNode-html .sourceRowText, .panelNode-html .docType, .panelNode-css .cssHead, .panelNode-css .cssColon, .panelNode-css .insertBefore, .panelNode-css .cssSemi {
    color: #00FF00 !important;
}

.panelNode-html .nodeBox.selected > .nodeCloseLabel .nodeTag, .panelNode-html .nodeBox.selected > .nodeLabel .nodeTag {
    border-bottom: dotted 1px #00FF00 !important;
}

.panelNode-html .nodeName, .panelNode-css .cssSelector {
    color: #080 !important;
}

.panelNode-html .nodeValue {
    color: #0c0 !important;
}

.panelNode-html .open > .nodeLabel > .twisty {
    background: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAkAAAAJCAYAAADgkQYQAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAACRJREFUeNpi/P//PwMhwMRABKCeIhYkNjbHMaIrYhwkDgcIMACaawQUFZkD6QAAAABJRU5ErkJggg==) transparent no-repeat 50% 50% !important;
}

.panelNode-html .twisty, .panelNode-html .selected .twisty {
    background-image: url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAkAAAAJCAYAAADgkQYQAAAAGXRFWHRTb2Z0d2FyZQBBZG9iZSBJbWFnZVJlYWR5ccllPAAAAC5JREFUeNpi/P//PwMhwMRABMCm6D9ZJrHgMAHGZkRXxIikgJEqDmcky+EAAQYAqSsHE4fG1SoAAAAASUVORK5CYII=) !important;
}
.panelNode-html .selected * {
    background-color: transparent !important;
}
.panelNode-css .cssPropName {
    color: #00FF00 !important;
}

.panelNode-css .cssPropValue, .panelNode-css .cssPropValueUsed, .panelNode-css .cssFontPropValue {
    color: #0c0 !important;
}
.panelNode-css .objectLink {
    color: #00FF00 !important;
}

.panelNode-css .disabledStyle span {
    opacity: 0.5;
}
.panelNode-css .groupHeader {
    color: #00FF00 !important;
    background: transparent !important;
    border: dashed 1px #00FF00 !important;
    border-left: none !important;
    border-right: none !important;
    padding: 4px !important;
    margin: 10px 0 !important;
}
.panelNode-css .groupHeader * {
    color: #00FF00 !important;
}