odoo_theme/theme_common/views/theme_common_templates.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <!-- Those are independant from the user palette and act as default for it -->
    <!-- Compatibility: Thoses templates are kept for now even though the -->
    <!-- enabled palettes are now handled through a scss customization -->
    <template id="option_colors_02_variables" inherit_id="theme_common._assets_primary_variables" active="False">
        <xpath expr="//link[last()]" position="after">
            <link rel="stylesheet" type="text/scss" href="/theme_common/static/src/scss/options/colors/option_colors_02_variables.scss"/>
        </xpath>
    </template>
    <template id="option_colors_03_variables" inherit_id="theme_common._assets_primary_variables" active="False">
        <xpath expr="//link[last()]" position="after">
            <link rel="stylesheet" type="text/scss" href="/theme_common/static/src/scss/options/colors/option_colors_03_variables.scss"/>
        </xpath>
    </template>
    <template id="option_colors_04_variables" inherit_id="theme_common._assets_primary_variables" active="False">
        <xpath expr="//link[last()]" position="after">
            <link rel="stylesheet" type="text/scss" href="/theme_common/static/src/scss/options/colors/option_colors_04_variables.scss"/>
        </xpath>
    </template>
    <template id="option_colors_05_variables" inherit_id="theme_common._assets_primary_variables" active="False">
        <xpath expr="//link[last()]" position="after">
            <link rel="stylesheet" type="text/scss" href="/theme_common/static/src/scss/options/colors/option_colors_05_variables.scss"/>
        </xpath>
    </template>
    <template id="option_colors_06_variables" inherit_id="theme_common._assets_primary_variables" active="False">
        <xpath expr="//link[last()]" position="after">
            <link rel="stylesheet" type="text/scss" href="/theme_common/static/src/scss/options/colors/option_colors_06_variables.scss"/>
        </xpath>
    </template>
    <template id="option_colors_07_variables" inherit_id="theme_common._assets_primary_variables" active="False">
        <xpath expr="//link[last()]" position="after">
            <link rel="stylesheet" type="text/scss" href="/theme_common/static/src/scss/options/colors/option_colors_07_variables.scss"/>
        </xpath>
    </template>
    <template id="option_colors_08_variables" inherit_id="theme_common._assets_primary_variables" active="False">
        <xpath expr="//link[last()]" position="after">
            <link rel="stylesheet" type="text/scss" href="/theme_common/static/src/scss/options/colors/option_colors_08_variables.scss"/>
        </xpath>
    </template>
    <template id="option_colors_09_variables" inherit_id="theme_common._assets_primary_variables" active="False">
        <xpath expr="//link[last()]" position="after">
            <link rel="stylesheet" type="text/scss" href="/theme_common/static/src/scss/options/colors/option_colors_09_variables.scss"/>
        </xpath>
    </template>
</odoo>