Some color and spacing adjustments

Material-Theme-Lighter.sublime-theme

[
    {
        "class": "sidebar_label",
        "color": [135, 145, 165],
    },

    {
        "class": "sidebar_label",
        "parents": [{"class": "tree_row", "attributes": ["expandable"]}],
        "color": [145, 165, 175],
    },

    {
        "class": "tree_row", 
        "attributes": ["selected"],
        "layer0.tint": [235, 235, 235],
        "layer0.opacity": 1
    },

    {
        "class": "tabset_control",
        "tab_height": 46,
        "content_margin": [12, -4, 8, 0]
    },

    {
        "class": "text_line_control",
        "layer0.inner_margin": [20, 0, 20, 5],
        "content_margin": [10, 0, 16, 1],
        "layer1.tint": [230, 230, 230],
        "layer0.tint": [230, 230, 230]
    },
    {
        "class": "text_line_control",
        "parents": [{"class": "overlay_control"}],
        "layer0.inner_margin": [32, 0, 32, 2],
        "content_margin": [32, 8, 32, 8],
        "layer0.tint": [250, 250, 250],
    },
]