When using the Nova theme locked command columns are not styled correctly.
In the following dojo one command column is locked and not styled while another command column is not locked but styled correctly.
https://dojo.telerik.com/eWECAZEw
Here's the code in case the dojo doesn't work:
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8"/>
<title>Kendo UI Snippet</title>
<link rel="stylesheet" href="https://kendo.cdn.telerik.com/2019.2.619/styles/kendo.common.min.css">
<link rel="stylesheet" href="https://kendo.cdn.telerik.com/2019.2.619/styles/kendo.rtl.min.css">
<link rel="stylesheet" href="https://kendo.cdn.telerik.com/2019.2.619/styles/kendo.nova.min.css"/>
<link rel="stylesheet" href="https://kendo.cdn.telerik.com/2019.2.619/styles/kendo.mobile.all.min.css">
<script src="https://code.jquery.com/jquery-1.12.3.min.js"></script>
<script src="https://kendo.cdn.telerik.com/2019.2.619/js/kendo.all.min.js"></script>
</head>
<body>
<div id="grid"></div>
<script>
var dataSource = new kendo.data.DataSource({
data: [
{ category: "category 1", subCategory: "sub. category 1", name: "product 1", val: 1 },
{ category: "category 1", subCategory: "sub. category 1", name: "product 2", val: 1 },
{ category: "category 1", subCategory: "sub. category 1", name: "product 3", val: 1 },
{ category: "category 1", subCategory: "sub. category 1", name: "product 4", val: 1 },
{ category: "category 1", subCategory: "sub. category 2", name: "product 5", val: 1 },
{ category: "category 1", subCategory: "sub. category 2", name: "product 6", val: 1 },
{ category: "category 1", subCategory: "sub. category 2", name: "product 7", val: 1 },
{ category: "category 1", subCategory: "sub. category 2", name: "product 8", val: 1 },
{ category: "category 1", subCategory: "sub. category 3", name: "product 9", val: 1 },
{ category: "category 1", subCategory: "sub. category 3", name: "product 10", val: 1 },
{ category: "category 1", subCategory: "sub. category 3", name: "product 11", val: 1 },
{ category: "category 1", subCategory: "sub. category 3", name: "product 12", val: 1 },
]
});
$("#grid").kendoGrid({
columns: [
{ command: "edit", locked: true, width: 150 }, // <<-- columns is locked
{ field: "category", locked: true, width: 150 }, // <<-- columns is locked
{ command: "edit", width: 150 },
{ field: "subCategory", width: 200 },
{ field: "name", width: 500 }
],
dataSource: dataSource,
scrollable: true,
selectable: "row"
});
</script>
</body>
</html>